The Motobilt Jeep CJ Wheelbase Stretch Kit is designed to use Jeep XJ rear leaf springs on the rear of your Jeep CJ (1976-1986). Installing this kit moves the rear axle back about 6 inches. The kit incorporates a custom rear bumper and shackle hangers in one part. The shackle hangers are positioned high on the bumper to keep the overall Jeep ride height lower for better center of gravity. The ends of the bumper are tapered in to allow better clearance for the shackles with the rear axle at full drop.

The kit comes with a custom set of leaf spring shackles designed to clear the bumper in the range of movement. The rear bumper also features 3/4 inch thick d-ring recovery mounts that pass through the bumper and welded on both sides. The bumper welds to the back of the factory cross member and has two side frame plates to cover the sides. This kit does include new spring shackles as noted. The shackles are CNC laser cut from 1/4 inch high strength steel plate.

The shackles measure 4 inches center to center and do have a 3rd cross bolt for additional support. The kit does not include poly bushings. The kit does require removing the factory gas tank. Many people install an aftermarket fuel cell.
Features:

Jeep CJ Wheelbase Stretch Kit
Fit 1976-1986 Jeep CJ
The bumper is 3/16 inch laser cut steel plate
3/4 inch thick d-ring mounts
Incorporated shackle mounts
Moves the axle back 6 inches
Measures 38 inch wide
Works perfect with Stretch Fuel Tank & Skid for Jeep CJ part number MB5040
Sold as kit

Note:

Hardware NOT included qty (6) 1/2”x5” Grade 8 bolts with locker washers and nuts.
Shackle bushing kit sold separately PN BushingKit. Only 1 kit is needed.
Includes new shackles and shackle spacers
The kit does require removing the factory gas tank
Many people install a Motobilt fuel cell in the cab or our under body stretch tank. MB5040
You do not outboard the springs like you would on the front. You will cut your spring perches off if necessary on wider axles and weld new ones on in the correct position.
Weight: 35lbs (approx.)

Related Parts:

Spring Bushing Kit

Guide to choosing the correct parts:

Check out this article to help you match your springs and rear stretch kit.

Wheelbase Stretch Kit for Jeep CJ