Uni-Body Stiffeners

TNT Jeep Cherokee Chassis/Unibody Stiffeners
TNT Jeep Cherokee Chassis/Unibody StiffenersTNT Jeep Cherokee Chassis/Unibody Stiffeners
Price: Starting at $128.35

Manufacturer: TNT

Product Options:

Jeep Model:
Front Extensions (XJ Only):


  • 3/16" Steel Construction
  • Eliminates Chassis Flex
  • Available for both Jeep® Cherokee XJ and Jeep® Grand Cherokee ZJ

Jeep® Cherokee XJ and Grand Cherokee ZJ were originally designed to do the mall crawl in questionable weather, not to climb a 30-foot waterfall. As a result, the unibody will flex and eventually get bent out of shape causing issues with door-fitment, rear hatch misalignment, creaking and groaning while driving, cracking and many other less than pleasant issues thus leading to the invention of TNT Unibody stiffeners nearly eight years ago. Since that time we have sold thousands of chassis stiffeners to Jeep® Cherokee XJ and Grand Cherokee ZJ owners.

. Using our Unibody Stiffeners by themselves you can establish a chassis sub-frame where there never has been one.

New! Chassis Stiffener Extensions XJ Chassis Stiffener Extensions

For those running long arm suspension setups on their Jeep® Cherokee XJ's TNT now offers chassis stiffener extensions. Constructed of 3/16" steel plate like our chassis stiffeners they extend from the front edge of our chassis stiffeners to just behind the coil bucket. Requires use of a long arm style suspension. Factory lower control arm mounts have to be removed in order to install.

Note:Welding required during installation. Product ships bare metal and chassis stiffeners are sold in pairs (left and right). Chassis stiffeners were designed to work with the TNT Rock-Tek Y-LinkTM Radius Arm Suspension System, TNT Rock-Tek Y-LinkTM Radius Arm Upgrade, or our HD Bellypan for establishing a complete sub-frame

Chassis stiffener extensions are compatible with Jeep® Cherokee XJ's only.

For XJ install instructions CLICK HERE

For ZJ install instructions CLICK HERE

Product Reviews

(6 Ratings, 2 Reviews) Average Rating:
Save your unibody!
Nathan Basinger (Farmington, UT) 6/10/2011 7:52 PM
These things went on perfectly, and the difference in feel was immediate. Very impressed with the quality and precision of the stiffeners. I'll be moving on to the Y-link upgrade next with that incredible belly pan to complete the subframe.
4 Wheeling Fool!
Jon DeRyke (Murrieta, CA) 2/11/2011 6:34 AM
Ordered the stiffeners on Tuesday morning, they arrived on Wednesday afternoon!!! Talk about fast ordering/shipping! Installation instructions were clear and complete. Stiffeners installed exactly as described, and fit like a glove. You notice the difference right away, with the added support from the rails. Great service, and a great product, I look forward to future business with T&T Customs.