MB7020

Double Triangulated 10" Stretch Suspension Kit for Jeep Wrangler JK 2012-2018

Name: Double Triangulated 10" Stretch Suspension Kit for Jeep Wrangler JK 2012-2018
Brand: Motobilt
SKU: MB7020
Price: 2899.00 USD
Availability: InStock

$2,899.00

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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.

Assembly Instructions

There comes a point in a short wheelbase build where axle placement matters more than bolt-on parts. On a 2 door Jeep JK, the factory rear suspension and wheelbase become a limiting factor when the build starts moving toward larger tires, more suspension travel, and serious rock crawling. Rear departure suffers, climbs can unload the chassis, and the short wheelbase can make the Jeep feel unsettled in terrain where stability matters most.

The Motobilt Rear Double Triangulated 4 Link Suspension Stretch System was designed to solve those packaging and geometry 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 chassis behaves. The Jeep feels more planted on climbs and descents, departure angle improves, and larger tires have room to work without fighting body clearance or suspension packaging.

This system establishes real suspension structure with frame mounted upper and lower link brackets designed around predictable geometry and long travel performance. Link separation is controlled, axle movement stays consistent through travel, and the suspension is no longer working around factory compromises. Designed to support coilovers or struts, the system also integrates with Motobilt rear back half components, fuel cell setups, rear bumpers, and rear stretch coilover towers to create a complete rear chassis layout.

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

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Important Information

Designed for 2012–2018 Jeep Wrangler JK 2 Door with 3.6L
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

2012–2018 Jeep Wrangler JK 3.6L 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.
Proper suspension tuning depends on final axle placement, shock setup, and intended use.

Frequently Asked Questions

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 our 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.

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.

Is this system designed to work with other Motobilt rear chassis components?

Yes. It was designed to integrate with the Motobilt rear back half, rear bumper, fuel cell systems, and related long travel rear suspension components.