MB7019

Double Triangulated 10" Stretch Suspension Kit for Jeep Wrangler JK 2007-2011

$2,899.00
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Compatible With:

JK
Rear double triangulated 4 link suspension stretch system for Jeep JK 2 Door. Stretch wheelbase up to 10 inches for improved stability and long travel suspension.

There comes a point in a short wheelbase build where axle placement matters more than adding another component. On a 2 door Jeep JK, the factory rear suspension and wheelbase become a limitation once the build moves into larger tires, more suspension travel, and serious rock crawling. Departure angle suffers, steep climbs can unload the chassis, and the short wheelbase can make the Jeep feel unsettled when terrain gets technical.

The Motobilt Rear Double Triangulated 4 Link Suspension Stretch System was designed to solve those factory limitations by moving the rear axle back up to 10 inches and replacing factory suspension geometry with a true double triangulated rear 4 link. Stretching the wheelbase changes how the Jeep behaves. The chassis settles down on climbs and descents, departure improves, and the extra wheelbase creates the room needed for larger tires and long travel suspension.

This system creates real structure at the rear of the chassis with frame mounted upper and lower link brackets designed around predictable geometry and suspension control. Instead of fighting short factory links and packaging compromises, the rear suspension cycles through controlled movement with proper link separation and support for coilovers or struts. Paired with the Motobilt rear back half, fuel cell, rear bumper, and rear stretch coilover towers, it becomes a complete rear chassis solution built around axle stretch and suspension travel.

Designed by builders who understand chassis fabrication and suspension packaging, this system was developed for serious fabrication builds where factory limitations are being removed in favor of a stronger and more capable rear suspension layout.

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Important Information
  • Designed for 2007–2011 Jeep Wrangler JK 2 Door with 3.8L
  • Allows rear axle stretch up to 10 inches
  • True double triangulated rear 4 link suspension layout
  • Supports coilover or strut rear suspension configurations
  • Compatible with Motobilt rear back half, bumper, fuel cell, and rear stretch coilover towers
  • Requires cutting and welding to the factory frame
  • Factory fuel tank relocation is required
  • Body removal is not required
  • Intended for experienced fabricators
  • Designed to establish repeatable suspension geometry during installation
Product Specifications

Vehicle Fitment

2007–2011 Jeep Wrangler JK 3.8L 2 Door

Suspension Design

True Double Triangulated Rear 4 Link

Axle Stretch

Up to 10 Inches

Link Joint Compatibility

Accepts 2-5/8 inch wide joints with 5/8 inch mounting holes

Mounting holes can be enlarged if desired

Dimensions

11.8" H x 45" W x 72.9" D

Weight

220 lbs

Material

Steel

Manufactured

Made in the USA

Notes
  • Test fit all suspension components before final welding or coating.
  • Fuel tank relocation is required to accommodate axle placement and suspension geometry.
  • Rear stretch coilover towers are recommended when building for long travel suspension.
  • Final wheelbase and suspension tuning should be set around intended tire size and chassis layout.
Frequently Asked Questions

What does stretching the rear axle do on a Jeep JK 2 door?

Stretching the rear axle increases wheelbase, improves departure angle, adds stability on climbs and descents, and creates room for larger tires and long travel suspension.

Why use a double triangulated 4 link on a Jeep JK rear stretch?

A double triangulated 4 link controls axle movement through suspension travel without relying on factory link geometry. It improves articulation, predictability, and chassis behavior in off-road use.

Does this rear stretch kit require relocating the fuel tank?

Yes. Fuel tank relocation is required to create the space needed for axle stretch and proper rear suspension packaging.

Can this system be used with coilovers?

Yes. This rear suspension system is designed to support coilovers or struts and pairs with Motobilt rear stretch coilover towers.

How much can I stretch the wheelbase with this system?

This kit was designed to stretch the wheelbase up to 10 inches and fit 42 inch tires when used with supporting system components, including the rear back half, fuel cell, and rear stretch coilover towers. Builders can also set this system up anywhere from 6 inches to 10 inches of stretch depending on axle placement, tire size, suspension packaging, and overall build goals. That flexibility lets you tune the wheelbase around the chassis layout you are building instead of forcing a fixed number.

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