1. Trailer Spindles
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  3. For 3500 lb Axle
  4. EZ Lube Spindle
  5. 1-3/4 Inch Diameter
  6. Round
#84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter

#84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter

Item # TRU74FR
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Replacement #84 E-Z Lube spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Grease zerk makes greasing easy. Flange lets you attach a brake assembly. Castle nut, washer, and cotter pin included. Lowest Prices for the best trailer spindles from TruRyde. #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter part number TRU74FR can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (10)
  • Q & A (141)
  • Photos
  • Why etrailer?

TruRyde Trailer Spindles - TRU74FR

  • For 3500 lb Axle
  • EZ Lube Spindle
  • 1-3/4 Inch Diameter
  • Round
  • TruRyde

Replacement #84 E-Z Lube spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Grease zerk makes greasing easy. Flange lets you attach a brake assembly. Castle nut, washer, and cotter pin included.


  • Tapered spindle replaces a worn or damaged #84 E-Z Lube spindle on your trailer
    • Can also be used to build a custom axle
  • Integrated zerk makes greasing your bearings easy
  • Mounting flange lets you bolt on a brake assembly
  • Weld-on installation
  • Sturdy steel construction
  • Castle nut, tang washer, and D-washer included


  • Application: 3,500-lb trailer axles
    • Spindle capacity: 1,750 lbs
  • Stub dimensions: 1-3/4" diameter x 4-1/4" long
  • Overall spindle length: 9"
  • Brake flange configuration: 4 bolt

Bearing, Race, and Seal Information

  • Bearings (sold separately)
    • Inner bearing: L68149 (1.378" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (sold separately)
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal (sold separately): 58846
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

spindle diagram

Part NumberCapacityABCDEFRound/Square
TRU74FR1,750 lbs1.75"1.719"1.378"1.063"1.00"4.25"Round - E-Z Lube and Brake Flange

SP-17584FZNWTW-900 TruRyde (TRP) Replacement EZ Lube #84 Spindle for 3.5K Axles - Brake Mounting Flange - 1.75" Diameter x 9" OAL

Replaces R20384EZ

Customer Reviews

#84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter - TRU74FR

Average Customer Rating:  5.0 out of 5 stars   (10 Customer Reviews)

Replacement #84 E-Z Lube spindle welds onto your 3,500-lb trailer axle. Works with L68149 inner bearing and L44649 outer bearing. Grease zerk makes greasing easy. Flange lets you attach a brake assembly. Castle nut, washer, and cotter pin included.


Very good part , etrailer service terri ble.


Real easy website that had exactly the part I needed when I couldn't find it anywhere in Canada. Fast to ship. Thanks so much!


The right part was in stock and arrived 3 days earlier than promised for no extra charge, thanks to a free shipping up grade. Fast and friendly service to your door step !! Thank you,


The spindle showed up very quickly and will work perfect for my boat trailer.


Professional construction







Ask the Experts about this TruRyde Trailer Spindles

  • Flange Bolt Pattern and Distance From Flange To Rear Of #84 E-Z Lube Spindle TRU74FR
    The #84 E-Z Lube Spindle w/ Brake Flange for 3,500-lb Trailer Axle - 1-3/4" Diameter # TRU74FR you were looking at has a 4 bolt mounting flange that has holes 2-7/8" apart on center, and from the outside edge of the flange to the end of the spindle is 3-1/4" as shown in the included diagram. This spindle will work perfectly with a 10" rotor. I included a video of the # TRU74FR for you to take a look at.
    view full answer...
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  • How to Pick Out Replacement Axle for Older Trailer
    We don't have a way to look up what axle/hubs your trailer needs by the VIN but we can help you determine what you'd need. The first thing you need is the capacity of the axle. You'll also need to know the axle length. I've attached a photo showing where to measure your axle for the correct length. I've also included a link to our axle product listings. Once you know your measurements, you can use the filters on the left side of the page to choose the correct axle. Or, if you'd like, you...
    view full answer...
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  • Is The EZ Lube Spindle # TRU74FR Compatible With 10 Inch Brakes
    I contacted our representative at TruRyde about the EZ Lube Spindle, part # TRU74FR, and he confirmed that it will work for 10 Inch brakes. I would recommend having a trailer professional install part # TRU74FR, as it requires precision welding. The spindle will need to be welded square and concentric to the axles so the brake will fit and operate properly in the hub.
    view full answer...
  • Replacement Spindle for 1996 Yacht Club Trailer
    We do offer replacement spindles for trailer axles that can be seen using the link provided. You will want to match the axle capacity (look for a sticker or plate on the axle itself) and its shape and dimensions, including length and diameter. Trailer spindles must be installed by a qualified professional welder. Spindles must be welded on perfectly concentric or you will have tracking problems. A trailer shop will have the right jigs to allow the spindle to be welded on correctly. I...
    view full answer...
  • How to Pick Out Replacement Axles for Snowmobile Trailer
    You are going to need to measure your current axles in a few places to get the correct one as we don't have a way to look up what you might need. You will need to measure from hub face to hub face and then from the spring seat centers. You will also need to know what bolt pattern you have on your current hubs. I attached a help article on how to determine this as well. I also attached a link to a page with all of the axles we carry. If you don't see the size you'd need you may need...
    view full answer...
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  • Spindle Recommendation for a Square 2x2 Axle
    For your 2 inch by 2 inch axles you would want a Redline Spindle for Square Axles # TRU47FR. This is a square spindle designed for 2 inch square axles so it should work for well for you. Check out the review video I attached. The EZ Lube Spindle # TRU74FR you referenced is designed for round axles so it would not work for you. Spindles should be welded on by a qualified welder.
    view full answer...
  • Is Broken Zerk Fitting of Trailer EZ Lube Spindle a Problem
    Actually it looks like your spindle had a standard zerk fitting on it at one point and it was possibly removed on purpose or accident. We don't have a way to install a new one. Honestly though you are better off without using this type of EZ lube setup. Repacking the bearings with grease by hand will give you the best results and won't risk you over-greasing the hub and blowing out the grease seal. I have linked a video to the right that shows how to pack trailer bearings. Be sure...
    view full answer...
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  • Replacement EZ Lube Spindle For 3,500 LB Axle
    The EZ Lube Trailer Spindle we carry for a 3,500 lb axle is the TruRyde Spindle, part # TRU74FR. This spindle includes the nut and washers. The overall length of this spindle is 9 inches. This spindle is compatible with # L44649 outer and # L68149 inner bearings, and has a The bearing kit that would work with this spindle is part # BK2-100. All of the spindles we carry are a weld-on application. Please keep in mind that installing the spindle requires welding it to the axle by...
    view full answer...
  • How Does The EZ Lube Spindle # TRU74FR Work On A Boat Trailer
    On the EZ Lube Spindle # TRU74FR you do not need a grease fitting for the hole on the inside end of the spindle. This is an EZ lube spindle which is designed to allow you to put grease onto the bearings by using the zerk fitting on the threaded end of the spindle. You will not want to block the hole that is on the inside end of the spindle. When the hub is installed on the EZ lube spindle it will form a cavity around the wheel bearings and when you pump grease into the spindle through...
    view full answer...
  • How to Pick Out Hub/Bearings and Leaf Springs for 2003 Yacht Club Trailer
    I really wish it was that easy, but we don't have a way to look up the VIN of a trailer and determine what axle the trailer had. In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need...
    view full answer...
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  • Replacing a Spindle on an Enclosed Trailer Axle
    When replacing the spindle on your trailer with a EZ Lube Spindle, part # TRU74FR, you will need to cut off the existing spindle and weld a new one in place. I strongly recommend you take it to a qualified machine shop to have the appropriate welds done.
    view full answer...
  • Replacement Zerk Fitting Recommendation for Dexter EZ Lube Spindle
    I confirmed with my contact at Dexter Axle that the grease zerk used in their EZ Lube spindles like # TRU74FR is a standard 1/4-inch pipe thread fitting that you can replace with an item like # Gzerk. Your local hardware store may have one too. You can use a grease gun kit like # L30132 on this fitting.
    view full answer...
  • Replacement Bearings and Bearing Buddy Protectors for 2008 Yacht Club Trailer
    I contacted Yacht Club Trailers and was able to track down the correct inner and outer bearings for your 2008 model trailer using the VIN you provided. The spindle on your trailer uses the # L44649 bearing (1.063 inner diameter) for both the inner and outer bearing. For a complete kit that includes the races and grease seal you can use # BK1-150. Most likely the correct Bearing Buddy size is the part # BB1980A, which fits a 1.980 inch hub bore. I recommend taking a quick measurement...
    view full answer...
  • Compatibility Of 3500 lb EZ Lube Spindles And Dexter Hub Assemblies
    The #84 EZ Lube Spindle # TRU74FR is compatible with hub assemblies # 84655UC1, however I recommend you use the Trailer Hub Assembly - 3,500-lb Axles - 6 on 5-1/2 - E-Z Lube # 84655UC1-EZ instead for easier access to your EZ Lube Spindle.
    view full answer...
  • Could Zerk Fitting be Added to Trailer Spindle to Make it an EZ Lube Spindle
    EZ lube spindles are more than just a zerk fitting attached to the end of the spindle. There would need to be a hole in the spindle between where the bearings ride for the grease would then fill the hub by. To be perfectly honest using EZ lube spindles or Bearing Buddies typically causes people to over fill their hubs and blow out the grease seal so you're better off packing the hubs by hand. I attached a link to a bearing packing video for you to check out as well.
    view full answer...
  • Replacement Grease Zerk for EZ Lube Spindle
    The grease zerk used in their EZ Lube spindles like # TRU74FR is a standard 1/4-inch pipe thread fitting that you can replace with an item like # Gzerk. Your local hardware store may have one too. You can use a grease gun kit like # L30132 on this fitting.
    view full answer...
  • Troubleshooting EZ Lube Initial Grease Leaking Out Rear Grease Seal
    If you have grease coming out the rear seal, you have a bad seal or the incorrect size seal size. The EZ lube spindles will allow you to see grease out the front with the rear seal intact if your seals are working properly as you stated. I've attached a video of the installation of the EZ lube hub # AKHD-545-35-EZ-K to help.
    view full answer...
  • Benefit of E-Z Lube Spindles for Easier Wheel Bearing Lubrication
    Using a grease gun on the zerk fitting of an E-Z Lube spindle like # TRU74FR can make it all too easy to over-fill the hub grease level. Care should be taken to avoid the risk of blowing out the inside grease seal. For such applications a double-lip seal is recommended since it will be less likely to suffer failure and leak grease everywhere. Using E-Z Lube spindles/grease caps makes for an easier time topping off the wheel bearing grease level. But the same routine maintenance is still...
    view full answer...
  • Can a Trailer Axle be Converted to an EZ Lube Axle by Replacing Spindles
    To upgrade to an EZ lube setup will require you to replace your axle or you could just replace the spindle. For a spindle with a 4 bolt mounting plate you would want the part # TRU74FR as it is an ez lube spindle. For a new hub/drum to fit this you would want the part # AKHD-545-35-EZ-K or for a idler hub part # AKIHUB-545-35-EZ-K. Welding a spindle is not something we recommend most people doing. Most axles have these welded on at the factory with specialized jigs and higher precision...
    view full answer...
  • Greasing Trailer Axle Spindle Where Zerk Fitting Broke Off
    What I would recommend you do is extract as much of the old zerk fitting as you can and then going forward grease that hub by hand and you'll be totally fine if not better off than using the grease fittings. It's pretty easy to overfill EZ lube spindles and blow out the grease seal of the hub so if you grease the hubs by hand you'll avoid that and be in good shape. I have linked a video to the right that shows how to pack trailer bearings.
    view full answer...
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  • Available Sizes of Trailer Axle Spindles
    TruRyde EZ Lube Spindle # TRU74FR does include a brake mounting flange already welded in place. The linked page displays all of our spindle products which include square-stub spindles without brake flanges like # TRU47FR. We do have 1-3/4-inch spindles but note these all have a round stub end, not a square stub. Spindles should be selected based on the axle's weight rating. This ensures the spindle has enough capacity to match the axle.
    view full answer...
  • How to Fix a Pitted Spindle
    Unfortunately, we do not sell spindle repair sleeves. However, the best way to repair a pitted spindle is to replace the whole spindle or axle. If you are interested in replacing your spindle, you can give me the spindle product number, or I will need to know a few measurements to recommend a new one. You will want to use a digital caliper like # PTW80157 to get the most accurate dimensions. The spindle measurements are labeled A through F, please view the diagram as a guide. A...
    view full answer...
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  • Correct Wheel Bearings and Races for 3,500 lb Axle Based on Spindle Diameter?
    The spindle dimensions you gave match up with # TRU74FR. This spindle is for use with 3,500 lb axles. Based on this, we can tell you that the appropriate bearings are inner # L68149 and outer # L44649. The correct races are inner # L68111 and outer # L44610. When replacing bearings, the grease seal often needs to be replaced as well, and the proper one for this is the Grease Seal for 3,500-lb Axles, # 58846. I have attached a help article on popular wheel bearings that you may find useful.
    view full answer...
  • Need Brake Flange For Adding Brakes to Homemade Trailer
    Since your hubs are for 5200-lb axles and you've confirmed that you do have a 3" diameter axle, you'll need the Redline 5 Bolt Flange # 4-44-1 . You should know, if you don't already, that brake flanges need to be welded perfectly concentric. For that reason we generally recommend that the work be done by an experienced trailer shop that has the required jig. To add brakes to your axles you'll need a couple additional parts- brakes and a hub and drum assembly. For brakes I recommend...
    view full answer...
  • Which is Better an EZ Lube Spindle or a Bearing Buddy Setup
    An EZ lube spindle will be better because it allows you to insert grease from inside the spindle where the bearings are and push out the old grease whereas with a Bearing Buddy you basically just get to push grease through the front of the hub. I attached a link to a page that has all of the EZ lube spindles we carry. The advantage to a Bearing Buddy would be that it would be much easier to install since they basically just replace the grease cap whereas with a new spindle you have to...
    view full answer...
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  • Does TruRyde Trailer Spindle # TRU74FR work with Trailer Hub Assembly # 8-248-50UC1-EZ
    EZ Lube Spindle # TRU74FR will work with trailer hub assembly # AKIHUB-545-35-G-EZ-K. The spindle # TRU74FR uses # L44649 and # L68149 bearings which are the same bearings that the trailer hub # AKIHUB-545-35-G-EZ-K uses.
    view full answer...
  • Troubleshooting Slight Amount of Grease Leaking from E-Z Lube Spindle
    Any grease on the back of the wheel could be from the grease working its way out from having slightly too much or it could be from a grease cap or grease seal that is not fitting properly. The grease cap and seal should be keeping any excessive grease off the wheel unless the parts are failing. I recommend pulling the rubber plug to see if there is grease inside and if so just clean the wheel and keep your eye on it for more. If it keeps happening, something is not working correctly...
    view full answer...
  • Is an Oil Bath System Compatible with EZ Lube Spindle # TRU74FR
    Yes, you should have no problems using an Oil Bath System, like part # XLPROLUBE1980KIT, with a number 84 EZ Lube Spindle, like part # TRU74FR. A few things to keep in mind when installing an oil bath system. You will want to make sure that everything is sealed up properly because oil is a liquid and if you have a major leak you will lose your lubrication. When you install the body and cap you will need to make sure that it is installed all the way in your hub and is not crooked. If...
    view full answer...
  • Grease is Leaking From the Back of the Hub at the Seal Rather than at the Front
    It is possible that you have single lip seals and need to replace them with double lip seals to avoid the grease leaking from the back of the hub. A double lip seal will have a stronger seal for EZ lube spindles such as # TRU74FR. The force of the grease being pumped in is too much for single lip seals to handle. Also, if using a powered grease gun, whether if it is electric or pneumatic, can also create too much pressure even for a double lip seal. If you can tell me the seal number...
    view full answer...
  • Grease Coming Out of EZ Lube Trailer Spindle
    There are only 3 ways that grease will come out on an EZ Lube axle. 1) You pump it in and it oozes out of the hole in the shaft to lubricate the bearings (normal operation). But you wouldn't see it because the hub/drum would be installed 2) It comes out the back of the hub meaning you blew a seal (seal needs to be replaced, use double lip seals) 3) It comes out where you are pumping it in because the hub/drum is full (if you see new grease then you are good to go) When adding...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Installed by:
Kathleen M
Employee Alexander C
Written by:
Alexander C
Employee Noah M
Updated by:
Noah M

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