Motobilt 10" Stretch Rear Shock Towers MB1580 for Jeep JK shown with crossmember

MB1580

10" Stretch Rear Shock Towers for Jeep JK

Name: 10" Stretch Rear Shock Towers for Jeep JK
Brand: Motobilt
SKU: MB1580
Price: 1499.00 USD
Availability: InStock

$1,499.00

Shipping calculated at checkout.

Compatible With:

Product variants

Quantity

Rear stretch coilover towers for the Jeep JK designed to support up to a 3.0 16 inch coilover while replacing the factory rear crossmember with a reinforced 3/16 inch structure built for link clearance and real suspension load.

Assembly Instructions

When you stretch the rear of a JK, the factory structure runs out of room fast.

The MB1580 Rear Stretch Towers are built to give the suspension the space and strength it actually needs. Designed to support up to a 3.0 16 inch coilover, these towers allow proper shock placement without compromising link geometry or stuffing the shock into weak factory sheet metal.

The system replaces the factory rear suspension crossmember with a new 3/16 inch steel crossmember engineered with built in link clearance. This creates the room necessary for a rear 3 link suspension to cycle properly without fighting the chassis.

RockJock sway bar brackets are included and designed to relocate the sway bar to a new frame position that works with the stretched layout. The towers are designed to work with the MB5099 Tomahawk Fuel Cell or a rear seat location fuel tank configuration, keeping the rear packaging clean and functional.

This is not a cosmetic upgrade. It is structural reconfiguration for builders who are serious about rear suspension performance.

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Important Information

Fits Jeep Wrangler JK 2007-2018
Designed for rear stretch suspension applications
Supports up to 3.0 inch body, 16 inch travel coilovers
Welding required for installation
Towers and crossmember must be welded to the factory frame
Includes RockJock sway bar relocation brackets
Replaces factory rear suspension crossmember
New rear crossmember constructed from 3/16 inch steel
Designed to work only with Motobilt MB5099 Micro Tomahawk
Fuel Cell or fuel tank relocated to rear seat location
Uses Motobilt MB5551 tower covers
Minimal exhaust modification required
Ships bare steel and must be painted or powder coated before final assembly
Intended for experienced fabricators or professional installation

Product Specifications

Vehicle Fitment
Jeep Wrangler JK 2007-2018
Part Type
Rear stretch coilover tower and crossmember kit
Application
Rear stretch and rear 3 link suspension builds
Coilover Capacity
Up to 3.0 inch body x 16 inch travel coilovers
Crossmember Material
3/16 inch steel
Included Components
Rear stretch towers
Rear suspension crossmember
RockJock sway bar relocation brackets
Compatible Fuel System
Motobilt MB5099 Micro Tomahawk Fuel Cell
Rear seat tank relocation setup
Compatible Tower Covers
Motobilt MB5551
Finish
Ships bare steel
Manufactured
Made in the USA

Notes

Full welding is required to install the towers and crossmember to the factory frame.
Remove the factory rear suspension crossmember before installation.
Mock up the full rear suspension at ride height and full bump before final welding.
Final shock fitment and suspension travel will depend on axle width, wheel backspacing, wheel size, and link geometry.
Minimal exhaust modification is required, but exact changes will depend on current exhaust routing.
Fuel system packaging must be planned before installation.
This system is designed around the MB5099 Micro Tomahawk
Fuel Cell or a rear seat tank relocation.
Test fit all components before final coating or paint.
Professional installation is recommended unless the builder has fabrication and suspension setup experience.

Frequently Asked Questions

Why are rear stretch towers needed on a Jeep JK stretch build?
When stretching the rear axle, the factory shock mounts and crossmember do not leave enough room for proper shock placement or suspension travel. Stretch towers create the space and structure needed for longer travel suspension.

What size coilovers will this kit support?
This kit is designed to support up to a 3.0 inch body, 16 inch travel coilover. Proper mockup is still critical to confirm final fitment with your axle, wheels, and suspension geometry.

Does this kit work with a rear 3 link suspension?
Yes. The included 3/16 inch steel crossmember is designed with built-in link clearance to support proper rear 3 link suspension movement without interference.

Do I need to relocate the fuel tank?
Yes. This system is designed to work with the Motobilt MB5099 Micro Tomahawk Fuel Cell or with the fuel tank relocated to the rear seat area. The factory fuel tank layout does not provide the needed space.

Is this a bolt-on kit?
No. This is a fabrication system that requires welding, suspension mockup, and chassis planning. It is intended for experienced builders or professional fabricators.