Mid Frame Section for Jeep YJ / TJ / LJ

Spec sheet

Collected from 1 supplier page - confirm fit with the supplier before ordering.

Looking to build out a complete Motobilt frame? The foundation starts with the Motobilt Mid Frame Section for the Jeep YJ, TJ, and LJ . Designed to work with the Motobilt front half and back half kits, this heavy-duty section provides the strength and precision fit needed to upgrade your rig’s foundation. Fabricated from 3/16" thick American steel , the MB3080 is built to handle extreme off-road use and the rigors of trail abuse. Often when building a custom Jeep YJ, TJ, or LJ you find out that the center section is rusted out or damaged so what do you do? That’s where the mid frame section comes in as it’s a heavy duty center section designed to work with the Motobilt front and back half kits. Why buy a rusted out or expensive factory Jeep frame when you are building a hardcore off road rig? Many customers will use this frame section along with a back half kit to convert from a YJ or TJ to the LJ length or what’s referred to as an TJ-6. Highlights: Made in the USA 3/16" Steel Construction Allows you to build a complete frame Fits: Jeep YJ Jeep TJ Jeep LJ Compatible: Front Half Kit: MB3034 Back Half Kit: MB3008 (TJ), MB3001 (YJ), MB3020-S / MB3020-W (LJ), MB3067 (YJ) Suspension: MB7009 (YJ/TJ/LJ) Double Triangulated 4 link MB1503 & MB1517 kits if used with the matching Back Half kit. Specifications: Weight: 77 lbs Notes: Ships raw steel; must be painted or powder coated to prevent rust. This is NOT a factory replacement frame section to repair your damaged or rusted frame. Welding required for installation. Professional installation recommended for proper alignment and fitment. Does not include body mounts or threaded skid plate mounting holes. Recommended: YJ-MB3081 Body mounts. TJ/LJ -MB3035 Body Mounts

Suppliers (1)

• Motobilt

  Mid Frame Section for Jeep YJ / TJ / LJ · Orderable · stock unverified

  Checked Nov 5, 2026
  $839.00
  View at supplier

Price history