1. Trailer Jack
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  3. Side Frame Mount Jack
  4. 10000 lbs
  5. Sidewind Jack
  6. Drop Leg
Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K

Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K

Item # TJD2SP-12000SP-F
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Trailer Jack
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Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K 10000 lbs TJD2SP-12000SP-F
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Pull the front-facing plunger pin on this heavy-duty jack to release the drop leg for an extra 13-1/2" of lift. The durable jack screw offers increased strength. Get maximum lifting power in low gear and fast cranking in high gear. Lowest Prices for the best trailer jack from etrailer. Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K part number TJD2SP-12000SP-F can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (9)
  • Q & A (5)
  • Videos (1)
  • Photos
  • Why etrailer?

etrailer Trailer Jack - TJD2SP-12000SP-F

  • Side Frame Mount Jack
  • 10000 lbs
  • Sidewind Jack
  • Drop Leg
  • etrailer
  • Fixed Mount Jack
  • Weld-On
  • 26 Inch Lift
  • With Foot

Pull the front-facing plunger pin on this heavy-duty jack to release the drop leg for an extra 13-1/2" of lift. The durable jack screw offers increased strength. Get maximum lifting power in low gear and fast cranking in high gear.


  • 2-Speed jack lets you raise and lower your trailer
    • Low gear offers full lifting power
    • High gear provides ultimate speed
  • Ideal for agricultural and commercial applications
  • Drop leg with spring return increases overall extension for maximum adjustability
    • Plunger pin positioned to the front
  • Durable 1-1/4" jack screw allows for heavy lifting
  • Twin thrust bearings make extending and retracting jack easy
  • Effortless greasing with built-in grease zerk
  • Black painted inner and outer tubes
  • Sidewind handle has curved edges - no sharp ends
    • Handle can be secured for travel with included weld-on clip
  • Footplate minimizes sinking in soft ground
  • Weld-on installation


  • Height:
    • 28" Retracted
    • 40-1/4" Extended
  • Total lift: 25-7/8"
    • Screw travel: 12-3/8"
    • Drop leg travel: 13-1/2"
  • Lift capacity: 10,000 lbs
  • Support capacity: 12,000 lbs
  • Outer tube width: 4"
  • Inner tube width: 3-1/2"
  • Footplate dimensions: 8-1/4" long x 8" wide
  • Adjustment hole spacing on drop leg: 3-3/8" from center of hole to center of hole
  • 1-Year warranty

TJD2SP-12000SP-F (TJD2SP-12900SP-F) Ram Square Two Speed Jack with Handle - Drop Leg w/ Spring Return - Side Wind - 12-3/8" Screw Travel - 10K

Video of Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K

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

Video Transcript for etrailer Trailer Jack - Side Frame Mount Jack - TJD2SP-12000SP-F Review

Today we're going to be taking a look at the Square 2-Speed Jack with the included drop leg and spring return. The 2-speed jack is going to let you raise or lower your trailer. It's got 2 gears. You're going to have a low gear and a high gear. The low gear is going to offer full lifting power, and then the high gear is going to provide ultimate speed. This jack is actually rated with a lift capacity of 10,000 pounds and a support capacity of 12,000 pounds. It's going to be ideal for agricultural and commercial applications.

The drop leg is basically just this piece down here. It's got the foot plate attached to it. The drop leg's included. It's going to have spring return, so it's going to increase overall extension for maximum adjustability. The plunger pin is positioned here at the front, so that's easily accessible.

It's got a nice, large design. To allow the drop leg to go down, or to move, you need to pull out the plunger pin and rotate it to either side. It's got this little indention here, so it'll remain in that position. Since we don't actually have it installed, I'm just going to put a little bit of pressure right here on the foot plate, and then I can lift this up just to show you a little bit of the drop leg. You can see all the adjustment holes in there. Once you find the point that really suits your need at the time, or whenever you want to lock it in place, you just rotate this back to the 'up' position, and it springs into place to secure that foot plate at that location.

It's a really nice design of the unit. It's going to also feature a durable 1-1/4" jack screw that's going to allow for heavy lifting. It's a nice, strong, durable design. It's going to have the twin-thrust bearings that makes extending and retracting the jack quick and easy. We're going to have a couple of grease/Zerk fittings; so, when it comes to maintenancing the jack, that's pretty easy. All you've got to do is attach your grease gun, pump in your grease to lubricate those internal components. When it comes to the finish that's on it, it's going to be made from a steel construction, and it's going to have the black painted finish on the outer tube and the inner tube, the foot plate, the drop leg tube.

A nice, strong, durable design, and again, it's just got that black paint finish on it, so it gives it that nice look. It's going to be a side-wind handle design. I do want to point out that the handle is included. That's this piece right here. That's got a rotating hand grip on this side, and it's got the attachment points and the hardware located on this side. You just attach that to whatever gear you want to use, and then you can simply just rotate it. Nice, curved design, just gives you plenty of leverage and it makes it easy to do. That is included. It's also going to come with this little clip right here. This is a weld-on clip. That way you can secure the handle for travel when the handle's not being used; so, that's a neat feature as well that's included with the jack. The footplate right here, it's a nice, large design that's really going to do a great job at minimizing sinking on soft ground. It's also going to offer just increased stability. The foot plate, we can take a measurement of that real quick. Going this direction, front to back, that looks to measure about 8-1/4". If we go side-to-side, that's going to measure right at 8", so a nice, large design. This is a weld-on installation. A few other measurements to go over with you real quick: If we look at the retracted height . I have it in the fully retracted position right now . that's going to be about 28-1/2". Then, when I had it extended, that was about 40-1/4 to 40-1/2; so, when it comes to the travel of the jack, we're looking at about 12-1/4 to 12-1/2" of travel. Then that drop leg . You saw the adjustment holes earlier . that's going to offer an additional 13-1/2" of travel. The hole spacing, center-on-center, on that drop leg is 3-3/8" apart on center, and so that's going to be the incremental height adjustment for the drop leg; so, again, you're going to have about 12-1/2" of travel with just the jack, and then, including the drop leg, that's going to add an additional 13-1/2" of travel. The outer tube square design, that's going to measure 4" x 4". The inner tube is slightly smaller. That's going to measure 3-1/2" x 3-1/2". That's that to do it for today's look at the Square 2-Speed Jack with the drop leg and spring return.

Customer Reviews

Square 2-Speed Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-7/8" Lift - 10K - TJD2SP-12000SP-F

Average Customer Rating:  4.9 out of 5 stars   (9 Customer Reviews)

Pull the front-facing plunger pin on this heavy-duty jack to release the drop leg for an extra 13-1/2" of lift. The durable jack screw offers increased strength. Get maximum lifting power in low gear and fast cranking in high gear.

- TJD2SP-12000SP-F

Fast delivery & Great price 711904

- TJD2SP-12000SP-F

Great product bolt was missing that held the handle on other than that it was great more than I expected shipping was very quick bolt was probably lost during shipment 381021

- TJD2SP-12000SP-F

A big shout-out to Kim, who answered the phone on a very busy day and gave me the best customer service on earth! The computers had shown that my product was not in stock, but she found one and got it shipped to me that day! This is my third time to use E-Trailer and I have been pleased every time. 467811

- TJD2SP-12000SP-F

nice jack, e trailer had the best deal out there 736521

- TJD2SP-12000SP-F

Jack works great, I installed it this morning. Thank you for the quick delivery. 725898

- TJD2SP-12000SP-F

Jack seems to be excellent as far as construction. Very heavy duty and at a good price. We have found fast shipping but sometimes things are too heavy for the packaging but thankfully we have not experienced loss of items or damage to other items within packaging. 720070

- TJD2SP-12000SP-F

The trailer jack its working great, I will look forward to buying many items from you soon. Thank You Jose U. Martinez 611734

- TJD2SP-12000SP-F

Great product and fast service. Thank you! 597609

- TJD2SP-12000SP-F

Leg arrived a day late due to wrong address on box. Arrived,box was distorted product ok just scratched paint. Need leg so I will fix cosmetics 439349


Ask the Experts about this etrailer Trailer Jack

  • Can Pin for Drop Leg be Moved on Pro Series Square 10,000 Pound Jack # PS1401010376
    The pin location cannot be changed but we do have Pro Series jack # PS1400950376 or # PS1400980376 which do have the pins on the front (or back depending on how you have the jack positioned). Another option is # TJD-12000SP-F2 or # TJD2SP-12000SP-F.
    view full answer...
  • Can Ram Trailer Landing Gear Jacks be Converted to 2 Speed
    You are correct in that the follow leg does not need to change to convert your Ram jacks to a 2 speed setup. You'll need to replace the lead leg with the part # TJD2SP-12000SP-F which has a two speed input but the output shaft still spins same speed either way. This is only version of the jack we can get though so you'd need to have this welded in place.
    view full answer...
  • Can the Square 2-Speed Jack w/ Crank Be Used In Tandem
    Yes, in order to use the Square 2-Speed Jack w/ Crank part # TJD2SP-12000SP-F in tandem you would need to obtain the correct follow leg which is the Square Direct Weld Jack part # TJD-12000SP-F2. The handle for this follow leg can be discarded as you would want to use the handle on the lead leg with the two speed operation. There would then need to be a cross shaft made to connect the two jacks but we do not offer this. That said, a trip to your local hardware store would allow you to get...
    view full answer...
  • Parts Needed For Yard Ramp Build
    Making a custom ramp like this takes some unusual parts, but I think I can help. For the wheels, I recommend the Ultra-Fab Hitch Mounted Skid Wheels for RVs up to 30' Long - 4" Diameter - Qty 2 # UF48-979015. For the 2 speed manual crank jack, I recommend the Square 2-Speed Jack - Drop Leg w/ Spring Return - Sidewind - 12-3/8" Travel - 10K # TJD2SP-12000SP-F. I don't know what you mean by tow boot. I assume you want a combo bar like # E-9 or a receiver like # UF35-946401. For...
    view full answer...
  • Best Single Speed Jack To Pair With 2 Speed Square Tube Jack
    These are both great questions! Jacks with 2 speeds have the gears changed by either moving the handle to a different spot on the jack, or having the handle pushed in or pulled out to change the gear that is engaged- with this specific jack, you'll push the handle in or pull it out to change speeds. With a dual speed jack, the input speed is changed but the output speed does not change, so you would be able to use a 2 speed jack as the lead leg and a single speed jack as the follow-...
    view full answer...

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Info for this part was:

Updated by:
Lindsey S
Updated by:
Ronnie R
Updated by:
Hannah L
Updated by:
Mike S
Expert Research:
Jameson C
Installed by:
Cole B
Written by:
Amanda M

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