Chassis Components Chassis and Frame Components

Motobilt

~(60 lbs. 48X8X8)~ Jeep LJ Frame Back Half Kit W/Stubby Bumper 04-06 Wrangler TJ Unlimited Motobilt

$699.00

SKU: M05M MB3020-S

In Stock
In Stock
Ships by Jun 19
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

This kit replaces the rear frame rails, moving them from inside the body to underneath it, tying directly into the rear floor. This opens up the chassis for proper link placement and coilover packaging, allowing for wheelbase stretch and improved suspension geometry. The included 50-inch stubby rear bumper is relocated up, just below the tailgate, reducing rear overhang and improving the departure angle. The kit includes upper and lower frame rail sections, a rear bumper assembly with 3/4 inch thick D-ring mounts, and two end caps. All parts, except D-ring mounts, are made from 3/16 inch high-strength steel plate.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMotobilt
Part NumberM05M MB3020-S

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy