911 Motorsports

Increase the lifting height of your floor jack with the 4x4 Floor Jack Extension! Install the included 1 1/2" Adapter Pin in place of the saddle on your floor jack so you can use the new 4x4 Saddle and Extensions. The Adapter Pin and Saddle alone adds about 3" and it comes with 6" and 11" extensions that you can stack for more than 16" of extra height. Use the 4x4 Saddle on the straight sides to lift by a square frame rail or turn it to the V-shaped sides to lift by the axle or other structural tubing. Made in the USA.

Jack NOT included! Adapter Pins to fit most 1½ to 4 ton floor jacks, check the chart!!!

Confirm your Floor Jack Saddle Mount style:

Fine Thread       - Most common on 2-4 ton jacks, comes with large washer for jacks with a lip around the threads

Coarse Thread  - Used on Duralast, Torin and potentially other brand jacks

Cross Pin           - Fits most 1½ ton jacks that use a cross pin to retain the saddle

Drop in pin         - Fits older style jacks with 1.17" or 1 3/16" saddle post

Kit includes:

1 1/2" Adapter Pin - machined 1018 steel, zinc-plated (make sure you pick the right one for your jack)

4x4 Saddle - laser cut, formed & welded 1/4" A572 steel, zinc-plated

6" and 11" Extension tubes - 1.5" dia. x .120"-wall DOM tube with a pressed-in stop collar, zinc-plated

Recommended limits: full jack rating w/6” extension, 75% of jack rating w/11” extension, 50% of jack rating w/both extensions.

The longer extensions add leverage to your jack base, which will bend or break if used improperly. The fail point in our destructive testing is the floor jack base, where our 1 1/2" pin attaches. This bends your jack saddle mount, then our Adapter Pin and extension tube with around 500-1000 lbs of side load, depending on the jack and extension. Weld the 1 1/2" Adapter Pin to your jack for increased strength, a couple stitch welds is all it takes.