TJ to LJ Frame Kit

4 reviews Write a Review

When the TJ to LJ kit is assembled it looks like this

  • All new aluminum cargo area for your Jeep TJ
  • High Capacity Fuel Tank for the Tracer Suspension
  • TJ to LJ Body Extension Panel with soft top lip.
This is the GenRight Off Road TJ to LJ Frame Stretch Kit.

Do you have a bunch of money invested into your Jeep TJ, but wish it was an LJ for the longer wheelbase and increased cargo area?

Now you can take any Jeep TJ (previously built or unbuilt) and convert the frame into the Jeep LJ Unlimited length.

This simple kit will give you the same up travel we offer in our Tracer coil over shock suspension kit.

All parts are key notched (puzzled) to fit together and self fixture for easy assembly by the installer.

When done, your TJ will even take a factory Jeep Unlimited LJ hard top or soft top!


  • (2) Heavy Duty 3/16" thick rectangular tube frame rails that are laser cut and notched.
  • (2) Sets of lag ser cut and CNC formed "fish plate" frame mounts.
  • (2) Rear Shock Mounting Towers for 2.0" or 2.5" coil over shock (same as our Tracer kit), keyed to self fixture to mating parts.
  • (2) 2" hydraulic (aka air bumps) Bump stop can mounts.
  • (1) New rear "tube" style cross member.
  • (1) New high clearance rear bumper that acts as rear crossmember and body mounts (as pictured).
  • (2) 7/8" thick Billet steel weld-on tow points for the rear bumper.
  • Includes step by step instructions.
  • 100% Made in U.S.A.



  • Works with all TJ's previously built with the GenRight Legend suspension. Frame brackets can be left in place and longer control arms made.
  • Rear section is laser notched to remove the rear most body lift pucks and move rear bumper up 1-1/4".
  • Sold as a DIY kit.
  • This kit requires cutting and welding for proper mounted to your existing TJ frame.
  • Reuses all your factory body mounts and hardware (including body lift).
  • All mounts are predrilled to fit the GenRight TJ or LJ "stretch" gas tanks.
  • The Aluminum Cargo Area Kit is sold separately.
  • The TJ Tub Body Extension Pieces are sold separately.
  • The Longer LJ Corner Guards are sold separately (if you already have GenRight Corners, bolt pattern is the same).
  • The Necessary Gas Tank is also sold separately (unless you already have a GenRight gas tank).

Click on any picture to see larger more detailed images!

4 Reviews

  • 5

    Posted by Max Brokaw on Apr 10th 2023

    I bought this kit to redo and stretch the back of my LJ. I am so glade I did. This kit was easy to install and solved all the problems I was facing by trying to redo what I already had. The rear half of my LJ is much stronger than it was stock and works perfectly. I would highly recommend this for any TJ owners wanting to stretch their rig or LJ owners wanting a strong, stretched clean look.

  • 5
    This kit is awesome!

    Posted by Ian Johnson on Feb 27th 2023

    I am so impressed with this kit! Well designed and easy to install and convert your TJ to a stretched LJ

  • 5
    This kit is awesome!

    Posted by Ian Johnson on Dec 15th 2022

    This is an awesome kit!!! I lover every bit of it!!! So well done.

  • 5
    TJ to LJ frame kit

    Posted by Jason on Jun 8th 2022

    I'm so impressed with this kit. It couldn't have went together any better. If you are thinking about purchasing I wouldn't hesitate, you won't regret it.