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Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs - Qty 2

Item # UF21-001070

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Retail:$90.29

Our Price: $71.95

Wheel Chocks

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Shipping Weight: 11 lbs

Estimated Delivery: Friday, October 19

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Ultra-Fab Products Trailer Wheel Chock,RV Wheel Chock Wheel Chocks - UF21-001070
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Ultra-Fab Products Trailer Wheel Chock,RV Wheel Chock Wheel Chocks - UF21-001070
Ultra-Fab Products Wheel Chocks - UF21-001070
Ultra-Fab Products Trailer Wheel Chock,RV Wheel Chock Wheel Chocks - UF21-001070
UF21-001070 - Trailer Wheel Chock,RV Wheel Chock Ultra-Fab Products Wheel Chocks
Ultra-Fab Products Wheel Chock,Wheel Stabilizer - UF21-001070
UF21-001070 - Trailer Wheel Chock,RV Wheel Chock Ultra-Fab Products Wheel Chock,Wheel Stabilizer
Ultra-Fab Products Wheel Chocks - UF21-001070
Ultra-Fab Products Wheel Chocks - UF21-001070
Wheel Chocks UF21-001070 - Trailer Wheel Chock,RV Wheel Chock - Ultra-Fab Products
Wheel Chocks UF21-001070 - Trailer Wheel Chock,RV Wheel Chock - Ultra-Fab Products
Ultra-Fab Products Wheel Chocks - UF21-001070
UF21-001070 - Trailer Wheel Chock,RV Wheel Chock Ultra-Fab Products Wheel Chocks
Wheel Chocks UF21-001070 - Trailer Wheel Chock,RV Wheel Chock - Ultra-Fab Products

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Ultra-Fab Products Wheel Chocks - UF21-001070
Wheel Chocks UF21-001070 - Trailer Wheel Chock,RV Wheel Chock - Ultra-Fab Products
Ultra-Fab Products Trailer Wheel Chock,RV Wheel Chock Wheel Chocks - UF21-001070

Customer Photos


  • Trailer Wheel Chock
  • RV Wheel Chock
  • Wheel Chock
  • Wheel Stabilizer
  • Ultra-Fab Products
Rid your rig of the rocking with these easy-to-use, stabilizing wheel chocks. Simply place the chocks between the tandem tires on either side of your RV and expand them until the give between the wheels is gone. For up to 5-1/4" wheel spacing. Lowest Prices for the best wheel chocks from Ultra-Fab Products. Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs - Qty 2 part number UF21-001070 can be ordered online at etrailer.com or call 800-298-8924 for expert service.


  • All Info
  • Reviews (59)
  • Q & A (27)
  • Videos (2)
  • Photos
  • Why etrailer?

Ultra-Fab Products Wheel Chocks - UF21-001070

Rid your rig of the rocking with these easy-to-use, stabilizing wheel chocks. Simply place the chocks between the tandem tires on either side of your RV and expand them until the give between the wheels is gone. For up to 5-1/4" wheel spacing.


Features:

  • Wheel chocks eliminate give between tandem-axle tires to prevent rocking when parked
  • E-Z grip handles provide excellent leverage and are lockable to deter theft
    • Padlocks sold separately
  • Super-grip louvers on arms grip tire tread to prevent slipping
  • Heavy-gauge steel construction
  • Corrosion-resistant zinc plating


Specs:

  • Quantity: 2 wheel chocks
  • Application: dual-axle trailers and RVs
    • Wheel spacing: 1-1/2" - 5-1/4"
  • Lifetime warranty


Note: The purpose of the Chock and Lock is to limit front-to-back motion on parked tandem-axle trailers. Do not use as brakes or wheel wedges.


Eliminate the annoying rocking of your trailer or RV no matter where you park it. The Chock and Lock stabilizers brace your tandem wheels against one another, stabilizing your trailer even on unlevel terrain. No more front-to-back motion.


Chock and Lock

Mounting the Chock and Lock

Adjust the chocks using the threaded rod and nut at the top of each unit. Simply place a chock, in the open position, between the tandem tires and turn the nut on the rod until the width of the unit fits the spacing of your tires. Then press the handle down into the locked position to hold the chock firmly in place. The handle can be locked with a padlock (sold separately) for additional peace of mind.




21-001070 UltraFab Ultra-Deluxe Chock & Lock - 2 Pack






Video of Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs - Qty 2


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Ultra-Fab Products Camper Jack UF21-001070 Review

Today we're going to be taking a look at the Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs. This is a 2 pack. You can see that when they're not being used, it do collapse for a nice compact storage so that way they don't take up much space when they're not being used in your storage compartment. It's also going to feature an E-Z grip handle, this is going to provide excellent leverage and these handles, when they're fully engaged in lock position like that and you have this installed in between your tires, these are lockable to help deter theft. Now, your padlocks are not included, those are sold separately, but if you're interested in the padlock, you can find them here at etrailer.com. The lock hold diameter on the unit is going to measure 3/8" in diameter, and then the span you would need or usable space, outside edge to outside edge is going to measure 7/8". Here on the arms, it's going to feature super-grip ridges, that's going to grip the tire tread to prevent slipping.

The arms are angled, they have a nice angle design to benefit the curve of your tire. The arms are going to provide a width of about 2 1/4". The units are made from heavy gauge steel. They're going to have a nice zinc plating, so they're going to resist rust and corrosion and last a long time. Again, you're going to get two wheel chocks, these are designed for dual axle trailers and RVs.

With the wheel spacing of an inch and a half, to 5 1/4" and they're going to be covered with a lifetime warranty. Now, please keep in mind that the purpose of the chock and lock is to limit front to back motion on part tandem axle trailers. These are not designed to be used as brakes or wheel wedges. When it comes to mounting the chock and lock, its got a threaded rod and knot here at the top. You'd need to adjust that to fit your application. What you would do is you would simply place one of this on the open position between the tandem tires, and then use that knot on top.

You would turn the knot on the rod until the width of the unit fits the spacing of your tires. Once you have that set, all you have to do is press this lever down into the lock position. It's going to push the arms out to provide that nice tight fit between the tires. Then you can install the padlock for further security. That's going to do it for today's look at the Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs..


Customer Reviews

Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs - Qty 2 - UF21-001070

Average Customer Rating:  4.8 out of 5 stars   (59 Customer Reviews)

Rid your rig of the rocking with these easy-to-use, stabilizing wheel chocks. Simply place the chocks between the tandem tires on either side of your RV and expand them until the give between the wheels is gone. For up to 5-1/4" wheel spacing.

- UF21-001070

by:


Adds additional stability, easy to install, no tools required ,great and simple product. 87574


Comments

After about the third time I used them one broke . The aluminum rivet in the cam lever sheared off I would not recommend this product. They should not be made with aluminum pop rivets

TBW - 07/05/2014

5349
Comments

TBW, I am in the customer service department at Ultra-Fab Products and I am sorry that one of your Chock has failed. I do want to let you know that we use steel rivets in our Chock & Locks and handle is held in place with a small machine screw and sometimes this screw will break. This is a proven product for us and we have very few warranty problems. Also your Chock & Locks do have a lifetime warranty so I would like to hear from you so we can help you with your broken Chock.

-- comment by: Randy U - 07/08/2014

5416
Comments

TBW,This product is covered with a lifetime warranty and weve gotten in touch with Ultra-Fab. We passed them your contact info so they can get in touch about repair or replacing.

-- Patrick B - 07/08/2014

5418

- UF21-001070

by:


The trailer is now steady as a rock. These chocks work as advertised. My wife is happ and you know what that means. 134369


Comments

Super !!!

bob w - 06/05/2015

12360

- UF21-001070

by:


Easy on line purchase! Fast delivery! Product in perfect condition! Easy to use! Arrived just in time for our trip out! Thank you etrailer!!! We'll be purchasing from you again in the near future for other items ???? 270683



- UF21-001070

by:


Everything that I ordered came within a reasonable time and in good shape. However, I was astonished by the size of the box it came in! The box was at least 3x the size of the material in it. The rest was filled with crumbled brown paper. Box was sealed closed with close to 50 industrial staples making it difficult and hazardous to open. I think an environmentalist would be appalled at the over packaging. Suggest the packaging dept. get a bigger variety of boxes to ship materials in. Otherwise, e-Trailer is my choice of camping and trailer supplies. 351210



- UF21-001070

by:


I just purchased a set of these for my toy hauler. They took a few minutes to get set up properly. Watch your fingers during this process as it is easy to get bit. Not a big deal since you only need to do this once before use. They were easy to install and do a great job of keeping the trailer in place. These are much better than the cheap plastic wheel chocks as you don't have to move the trailer and preload them against the tires to work properly. I wish I would have bought these years ago. 170470



- UF21-001070

by:


The Ultra-Fab Chock & Wheel Stabilizers are pretty much what I expected. The build quality is good and they are perhaps even a bit more heavy duty than I thought they'd be. I was pleased that the adjustment and cam lever worked exactly as shown in the video. Though we haven't had the opportunity to enjoy a weekend of camping with them yet, it seem clear they will eliminate any to-and-fro motion in the trailer due to wheel movement. 108172



- UF21-001070

by:


If your using conventional wheel chocks, and are tired of your rig rocking with every walk across the floor, I highly recommend these chock/stabilizers. They were easy to set up, and totally eliminate the rocking. 188305



- UF21-001070

by:


I have a 32' fifth wheel which I purchased this product for. This is an excellent product that is well made and has been resistant to rust. It will greatly improve the stability of your camper and reduce movement of your camper when parked. For those sensitive to camper movement this product is very beneficial. I recommend this product to other camper owners. 442832



- UF21-001070

by:


Heavey duty steel construction. The lever arm does provide enough expansion to lock the twin axle wheels and prevent movement. The chocks do prevent movement when walking around in trailer and are effective as chocks. However the pivot points are large pop rivet construction and a sloppy fit. Personally I would rather see hardened bolts and locking nuts. 432185



- UF21-001070

by:


These do a great job securing the trailer on un-level ground. I always worried about the camper moving even with wheel chocks and the stabilizers down, but this solved the problem. Fine tuning the adjustable nut so you get the correct pressure on the tires takes a little time, but the results are worth it. I would buy these again without hesitation. 266550



- UF21-001070

by:


Right now a 4 star for the quality of the product. Product looks easy to adjust and well made. I am trying them out this weekend and will adjust my review accordingly. I give a 5 star to etrailer for excellent prices and reliable, fast shipping. I WILL give etrailer ALL my future RV parts business. Deken G. 276320



- UF21-001070

by:


Though I haven't installed these lock wheel stabilizers on our trailer as yet, I was very pleased with the timeliness of their arrival to my home. The stabilizers seem to be of good quality and were reasonably priced. If the need arises, I will make other purchases from etrailer.com. Thanks! Bob S. 204397



- UF21-001070

by:


These came quite quickly. I am very pleased at the heavy duty nature of the chocks, and I truly like their ability to be locked. The Airstream I am rebuilding is in an out of the way place in less than ideal surroundings and the ability to lock the wheels as well as the ball is a great comfort! 152170



- UF21-001070

by:


Purchased this product from ETrailer.com and the product was just as described work well to eliminate bounce in trailer. Best of all was the customer service I received from Etrailer the chicks arrived sooner than I thought they would and would definitely order from them in future. 121636



- UF21-001070

by:


These wheel locks worked great. they are light weight and easy to install. etrailer delivered them fast. I also bought the towing mirrors which are good quality. I am very happy with my purchase and the customer service i received from etrailer. 154895



- UF21-001070

by:


I have only been "RV ing" for four years, but have tried many different chock methods,.......this is by far the best! Once you do the one time adjustment, it takes longer to walk from one side to the other than installing the chocks. 145329



- UF21-001070

by:


These arrived just in time for my first outing in my new fifth wheel. They were perfect, easy to adjust and install. They appear to me to be well deisgned and made. I am surprised that they were not more costly. 161606



- UF21-001070

by:


Used tire chocks and my trailer moved back an forth, Bought a pair tire locks and trailer doesn't budge put stands down and now im very stable no movement. Great product would recomend to any one 261985


Comments

works great stops trailer from any movement backnforth

Chuck - 06/16/2017

25073

- UF21-001070

by:


Have not used them yet, did not expect this so soon. They were recommended by a friend so I am sure they will work as advertised. Like your web site easy to use and the videos are very helpful. 370190



- UF21-001070

by:


This product is easy to adjust to fit between camper tires and easy to install with just a flick of a lever. They hold the camper secure and alleviate rocking forward and back. 287737



- UF21-001070

by:


It's as simple to use as the write says it is. Take a few minutes initially to setup but once I'm on site, place, push, done. No cranking with a wrench. Glad I got them. 184361



- UF21-001070

by:


This product is great and a huge improvement over the standard wheel chocks. They were a decent price however the value was reduced due to the shipping costs to my location. 124897



- UF21-001070

by:


Product seems heavy duty, easy to setup, and lockable. Again Etrailer took care of me. Crazy fast free shipping. Ordered on Monday got it on Friday. 190145



- UF21-001070

by:


These chicks are simple to set up. They stopped the camper from moving immediately. I've only used these once so longevity remains to be seen. 372986


Comments

Still working great.

David L - 05/04/2018

38130

- UF21-001070

by:


all the products that came from e-trailer is a very good. fifth wheel hitch etc. I will always purchase my trailer needs from e-trailer. thks 302421



- UF21-001070

by:


All steel rugged; easily adjusted to my wheel spacing and can be installed when adjusted once in one pull of the cramming handle. Nice 559381



- UF21-001070

by:


Great shipping on Etrailers part. Didn't catch that these are only like 5" opening so didn't fit my camper. Easy return policy though. 59681



- UF21-001070

by:


Great for setting the trailer in place. Work way better than plain wheel chocks. Can be locked in place which is a nice feature. 433758



- UF21-001070

by:


Use this product on my new trailer this wkend, worked excellent, thanks for the fast shipping that you upgraded for my order. 120876



- UF21-001070

by:


The product was delivered very quickly and was exactly what I needed. I used these last week and they worked very well. 178038



- UF21-001070

by:


As with my other review....excellent and most convenient chock and wheel stabilizer along with that lifetime warranty. 302004



- UF21-001070

by:


Company is great to work with. Shipped half my order and will ship the other half with no add. shipping cost. Thanks 272833



- UF21-001070

by:


Actually i havent used it yet. What i really liked was the initial sales call. Very freindly and helpful 379099



- UF21-001070

by:


Work just as described. Arrived in record time. ETRAILER never ceases to amaze me on service! 519889



- UF21-001070

by:


Quality is good and they seem to work as they should. Guess only time will tell different 43321



- UF21-001070

by:


I haven't used it, a good thing, but it should last longer that the plastic one. 290227



- UF21-001070

by:


These chiockswork perfectly. Well worth the money. Keep the trailer very stable. 265402



- UF21-001070

by:


Everything performs the way it is supposed to. fantastic delivery time thanks 82689



- UF21-001070

by:


Was easy to install works as advertised! Received product two days UPS ground 162635



- UF21-001070

by:


Fast and accurate delivery I am getting ready to install the parts next week 40712



- UF21-001070

by:


Order arrived in 2 days. Product works as expected, very easy to set up. 222263



- UF21-001070

by:


Delivered in a timely manner. Work well. Prevents front to back motion. 529712



- UF21-001070

by:


Works just as described......easy to set up Customer service is great 303138



- UF21-001070

by:


Everything worked just as described, good quality and easy to assemble. 58828



- UF21-001070

by:


product is excellent. easy to install. great service from e trailer. 250782



- UF21-001070

by:


Works OK but does not take all of the bouncing out of the trailer. 286763



- UF21-001070

by:


Works just as advertised and was received quickly. Great service. 186283



- UF21-001070

by:


are easy to use and do a good job of maintaining stability of RV 321018



- UF21-001070

by:


I was surprised by the excellent quality. Highly recommended 465395



- UF21-001070

by:


excatly what I was looking for, easy to use and light wieght 145435


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Show More Reviews

Ask the Experts about this Ultra-Fab Products Wheel Chocks
Do you have a question about this Wheel Chock?


  • Wheel Chock and Lock for a Tandem Axle Travel Trailer
  • Wheel stops such as # UF21-001070 are designed to stop rocking back and forth just like you said. For a wheel chock I would go with # MT70073 but to keep someone from trying to steal the trailer you could use a wheel lock, # WI490 or # RA-25.
    view full answer...

  • How to Determine the Correct Wheel Chock for a Keystone Bullet 281 bhs
  • Most of the wheel chocks on the market are universal items and not trailer specific. To determine which Ultra-Fab Chock and Lock Wheel Stabilizer will work best for your Keystone Bullet 281 bhs, we will want to know the spacing between your tires (see photo). The Chock and Lock Wheel Stabilizer, # UF21-001060, will expand up to 5-1/4 inches wide and it is available as a two pack as part # UF21-001070. If your tires are further apart, then you could use the Chock and Lock Wheel Stabilizer,...
    view full answer...

  • Are Two Camco Premium Locking Wheel Stops CAM44662 Needed for 25-Foot Trailer
  • One of the Camco Premium Locking Wheel Stops # CAM44662 will effectively prevent the trailer from rolling. But adding a second one on the other side of the axles will further stabilize the trailer and help to reduce any wander from half the axle being unsecured. If you want a set of two you might prefer part # UF21-001070 or part # UF21-001091 from Ultra-Fab. These wheel stops will not be as effective as the trailer's actual stabilizer jacks at reducing roll of the trailer when you...
    view full answer...

  • How Many Wheel Chocks Should be Used
  • We recommend using 2 of the Ultra-Fab Chock and Lock Wheel Stabilizer # UF21-001060 when your trailer is parked as that will keep it more stable on both sides. You can find a kit of 2 with part # UF21-001070. Please note that you also need to add the chocks like the FloTool Wheel Chocks # FT11930MI on the outsides of your trailer tires to limit the movement of your trailer.
    view full answer...

  • Wheel Chock and Stabilizer for Tandem Axle Trailer with 2 Inch Gap Between Front and Rear Tires
  • The 2 inch spacing you have between the front and rear tires is enough to use Ultra-Fab chock # UF21-001060. It will fit tire spacing of 1-1/2 to 5-1/4 inches. I have included a link to a video review for you. For a set of 2 use # UF21-001070. You can also add a lock to the chock using # RM-301.
    view full answer...

  • Recommended Tire Clearance Between Tires on Dual Axle Trailer
  • There should be 2 inches minimum between the tires on a dual axle trailer. This will allow the suspension components room to work properly but a little more room is ideal. For instance the Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers and RVs - Qty 2 # UF21-001070 is designed to be used between the two wheels and will work on wheel spacing between 1-1/2 and 5-1/4 inches. 3-1/2 to 5-1/4 inches is my recommendation. The axle spacing center to center should be between...
    view full answer...

  • Stabilizing a Trailer Side to Side and Front to Back
  • Ultra-Fab Chock and Lock Wheel Stabilizers # UF21-001070 fits a wheel spacing of 1-1/2 inches to 5-1/4 inches, but not 1-3/8 inches. I recommend using a couple of traditional chocks such as # MT70073. You could put one at the front of the front tire and one at the back of the back tire, or have them both between the tires to prevent tire movement. To help further stabilize the trailer I recommend using stabilizer jack set # UF48-979004. Each one of the jacks has a 6,000 pound capacity...
    view full answer...

  • Is the Ultra-Fab Chock and Lock Wheel Stabilizer Similar to a Wheel Chock
  • The Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers # UF21-001070 is a wheel chock system that performs the function of a traditional wheel chock, except that by its design it eliminates any movement and is lockable to deter theft.
    view full answer...

  • Wheel Chock Stabilizer Recommendation for Tandem Axle Trailer with Tires 10-1/4 inches Apart
  • What you will want instead of the # UF21-001070 is the # UF21-001091 which can fit wheel spacings of up to 10-1/4 inches. This will be your best option for sure.
    view full answer...

  • Will JT's Strong Arm Jack Stabilizer Kit Work with Hydraulic Stabilizer Jacks on a 5th Wheel Trailer
  • I checked with Lippert and found that you can use the JT's Strong Arm Jack Stabilizer Kit # LC191023 with electric or hydraulic front landing gear that have drop legs. Without a drop leg or for mid or rear leveling jacks they will not fit. Another option is to use chocks that fit between the wheels on a multi-axle trailer, # UF21-001070, that will prevent the front to back movement from slight movement in the wheels. I have linked a video review for you.
    view full answer...

  • Is Ultra-Fab Chock and Lock Wheel Stabilizer Sold in Pairs or Just 1 Chock
  • If you were to order Ultra-Fab wheel chock # UF21-001060, you would receive 1 wheel chock. For a pair you can use part # UF21-001070. Having 2 will provide extra protection but using 1 is usually enough depending on your intended application. These chocks work well to prevent a trailer from rocking when parked. Having just one will reduce this rocking some but 2 will be ideal.
    view full answer...

  • Trailer Wheel Stabilizer Recommendation for Wheels that are 7 inches Apart
  • Yes, the Camco Premium Locking Wheel Stop # CAM44662 can fit on trailers that have tires that are between 3" and 10" apart so it would work well for you. I attached a review video for you to check out as well
    view full answer...

  • Ultra Fab Lock Wheel Stabilizer or Wheel Chock Recommendation
  • If you are looking for a way to reduce the front to back movement of an RV when parked stabilizers like the Ultra-Fab Chock and Lock Wheel Stabilizers # UF21-001070 would be your best option. If you are looking for a brake to prevent a trailer from rolling down a hill when unhitched a wheel chock like part # MT70073 would be better.
    view full answer...

  • Fit of Ultra-Fab Wheel Chock # UF21-001070 on Twin Axle Trailer with 5-1/2 Inches Between Tires
  • The # UF21-001070 is designed for tire spacing of up to 5-1/4 inches, and therefore would not work with the wheel spacing of your trailer. We have a larger model, part # UF21-001080 that will work on tire spacing between 4-1/2 and 10 inches that would be a better choice for you. The chock is sold individually, so if you wanted one for each side, you would need to order two of them.
    view full answer...

  • Wheel Chock Lock Recommendation for Tires that are 5 inches Apart
  • You would want to go with the Ultra-Fab Chock and Lock Wheel Stabilizer for Tandem-Axle Trailers and RVs # UF21-001080 this will work on wheels that are spaced between 4-1/2 and 10 inches apart; so it should work well for you. I attached a review video for this product for you to check out as well.
    view full answer...

  • Availability of Wheel Cock and Lock Stabilizers for Tandem Axles to Fit 2 Inch Wheel Spacing
  • I have a solution for you. Ultra-Fab makes two different sets of wheel chocks that will fit the 2 inch wheel spacing on your tandem axle trailer. The Super Grip Chock Wheel Stabilizers, # UF21-001091, are a set of 2 wheel chocks that use a E-Z ratcheting system to expand the chocks. The set of Ultra-Fab chocks will fit a wheel spacing as small as 1 inch between the tandem axle wheels. The other set are the Ultra-Fab Chock and Lock Stabilizers of Tandem-Axle Trailers, # UF21-001070....
    view full answer...

  • Do the Ultra-Fab Trailer Wheel Chocks Put A Lot of Tension on the Tires
  • The Ultra-Fab wheel chocks, # UF21-001070, kind of work like vise grips. There is a nut on the top that you loosen or tighten and this controls how much the chocks push out against the tires. The lever pushes out the sides of the chock to the limit set by the nut, like squeezing the handle on vise grips. To get more tension you would adjust the nut until you get the desired tension. I have included a link to a video showing how the chocks work. You can also add a pad lock like # 141T...
    view full answer...

  • Should Two Pairs of the Ultra-Fab Chock and Wheel Stabilizer be Used on Triple Axle Trailer?
  • I do recommend using two pairs of the Ultra-Fab Chock and Lock Wheel Stabilizers # UF21-001070 for your triple axle trailer. Doing so is going to give you the best amount of stability to limit the front-to-back rocking motion that will occur when you are parked. These stabilizers are designed to work with wheels that are 1-1/2" to 5-1/4" apart; I've added a link to video reviews of this product for you to take a look at as well.
    view full answer...

  • Axle Spacing Compatibility with Ultra-Fab Chock and Lock Wheel Stabilizers UF21-001070
  • The Ultra-Fab Chock and Lock Wheel Stabilizers # UF21-001070 will work on travel trailers whose tandem axles provide wheel-to-wheel spacing between 1-1/2 - 5-1/4-inches. This product is excellent for reducing the rocking of your occupied trailer or RV but it is not intended as a safety device like actual block-style wheel chocks such as # MT70073. For wider wheel spacing the similar item # UF21-001095 is offered. Please refer to the linked video for installation details. Either kit...
    view full answer...

  • Security of the Ultra-Fab Chock and Lock Wheel Stabilizers # UF21-001070
  • The Ultra-Fab Chock and Lock Wheel Stabilizers, # UF21-001070, with a pad lock cannot be defeated by loosening the nut. The chock is designed to protect the nut from unthreading once the chocks are in place. Check out the video I made for you that shows how the nut is protected.
    view full answer...

  • Can Ultra-Fab Wheel Stabilizers Be Used For Boat Trailer
  • The Ultra-Fab Chock and Lock Wheel Stabilizers, part # UF21-001070 would work great for a boat trailer. These stabilizers are designed for tandem-axle trailers and RVs, so if your boat trailer has tandem axles they would help keep the trailer stable and prevent rocking when parked. You simply place them between the wheels and expand them until they are secure. You can use padlocks like part # RM-302 with the wheel stabilizers to deter theft.
    view full answer...

  • Should One or Two Ultra-Fab # UF21-001070 Chock and Locks Be Used on Tandem Axle Trailer
  • Using two of the chocks is recommended (in fact, part # UF21-001070 includes two of them.) The Chock and Lock stabilizers brace your tandem wheels against one another, stabilizing your trailer even on unlevel terrain. No more front-to-back motion. Using a single chock on only one side would be much less effective than using two of them. I've linked you to a product demonstration video for the chocks that you might find helpful.
    view full answer...

  • Will Ultra-Fab Chock and Lock Wheel Stabilizers Work on a Trailer w/Equa-Flex Cushioned Equalizers
  • It sounds like the axles are not quite aligned. To determine if that is the case you can measure from the center of the front wheel to the center of the rear wheel on one side then do the same on the other side. If they are off by more than 1/8 of an inch you will need to adjust the axle positions by loosening the suspension, making adjustments, and tightening it all back up again. It would take a lot of force to compress the rubber springs in the Equa-Flex system and you would not be...
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  • Best Way to Stabilize a 40 Foot Travel Trailer
  • For your 40 foot travel trailer, I recommend using four stabilizer jacks and two wheel stabilizers. The stabilizers jacks will need to be placed in all four corner of the trailer and for this, I recommend the Ultra-Fab Ultra Scissor Jacks part # UF48-979031 which have a 6,500 lb capacity and offer up to 30" of lift. If you have a cordless 1/4" impact you can use the speed socket part # UF48-979005 to raise/lower the jacks but if not there is a manual crank handle included. For the wheel...
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  • Tandem Axle Trailer Wheel Stabilizer Recommendation for Tires 6-1/2 inches Apart
  • The kit you need is the part # UF21-001091. This setup is designed for wheel spacings of up to 10-1/2 inches so it would work well on yours that is 6-1/2 inches. Check out the review video I attached for more info as well.
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  • Recommended Distance Between Tandem Axle Trailer Tires
  • Sounds like you are asking about clearance between tandem axle tires. Typically you want at least 2 inches between the tires without a load and when fully loaded at least 1/2 inch. If your question is related to alignment you'd be best served finding a shop near you who can align trailer suspension and have them take a look.
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  • Availability of 2-Piece Set of Ultra-Fab Wheel Chocks
  • We do offer a 2-piece set of Ultra-Fab Chock and Lock Wheel Stabilizers for Tandem-Axle Trailers, part # UF21-001070, that works with wheel spacing between 1-1/2- and 5-1/4-inches. If you wish to lock them you can use lock kit # 141T from Master Lock.
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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Video Edited:
Zack K
Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Rick A
Expert Research:
Adam R
Installed by:
Cole B
Expert Research:
Jeffrey L
Updated by:
Sarah W
Photos by:
Stacy F
Updated by:
Halie H

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