XJ Frame Stiffeners 84-01 Cherokee XJ TNT Customs. Jeep Cherokee XJ 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 frame 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 frame stiffners by themselves you can establish a chassis sub-frame where there never has been one.
- 3/16 inch Steel Construction
- Eliminates Chasis Flex
- Available for both Jeep XJ and Jeep Grand Cherokee ZJ
- XJ Frame 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 inch 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 frame stiffeners are sold in pairs (left and right). Frame 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. XJ Frame stiffener extensions are compatible with Jeep Cherokee XJ’s only.