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Rear Crossmember Kit

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Only: Starting at $179.99
Manufacturer: Gen-Right
Manufacturer Part No: RBB1001

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This is the GenRight RBB-1001, a 3/16" thick steel cross member reinforcement kit for the rear cross member on the frame of a Jeep.

It is designed to beef-up your existing rear frame member AND body mounts. It can also  be used as a hi clearance bumper by itself (as we do on our 
RTC-3200 & 3400 tire carriers) or a reinforcement under a rear bumper.

As you can see in the pictures, you remove the rear most body mounts and install the plate then slip them back in place.


  • C channel design fits over and under frame.
  • Laser cut and CNC formed into shape for a perfect fit.
  • Allows you to repair or replace damaged rear frame cross members & body mounts (needed on LJ's).
  • Allows you to beef up rear frame section.
  • Can be installed under an existing rear bumper.
  • Can be used by itself as a bumper for a better departure angle.
  • Bolt-on design.
  • Includes Grade 8 mounting hardware.
  • Shipped to you un-painted.

This kit includes:

  • (1) Full width laser cut and bent rear plate (RBB-1000)
  • (2) Outboard rear frame brackets (can not be used on leaf spring vehicles)
  • (1) Grade 8, 7/16-20 Hardware kit


  • Requires dropping the gas tank and the drilling of 2 additional holes in the rear cross member to properly mount it on your Jeep. 
  • Optional internal "backing plate" is recommended and available (RBB-1007).
  • For proper mounting, it requires removing the fuel tank to drill and access center bolts.
  • Is NOT a direct bolt-on for CJ's.
  • If this product is being used under a aftermarket rear bumper to beef up or reinforce the rear cross member, you may have to cut off and re-weld the lower tabs on the rear bumper (if your bumper has these tabs to pick up bottom frame holes).
  • Holes in plate fit the LED-1500 back up lights.

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