The M.O.R.E. Jeep® CJ "through" the frame shackle reversal system is a bolt on and weld in construction with all hardware included. A shackle reversal system or "SRS" allows the front suspension to travel in a much more natural action when the spring compresses. The new front pivot brackets are fully welded, and ready to bolt into existing holes in your CJ frame. Spacer plates are provided for the purpose of different winch mounting possibilities, and/or if you choose to use our Frame Plates (FP100 or FP300). The shackle plates provided in this system are 3/8" thick steel. This S.R.S.™ mounts the shackle "through" the frame. A hole must be drilled in the frame and then a tube welded in it, polyurethane bushings (provided) are then inserted into the tube and the shackles (provided) hang from each side of the frame. This method will not lift the Jeep®. The front driveshaft will need to be modified with a long travel slip in stub. It will work with or without a lift kit, spring under or over the axles. This kit designed for Wrangler YJ Springs comes with wider tubes and bushings to insert in the frame so you can install the wider Jeep® YJ Wrangler springs. Why, you ask? The Wrangler springs typically have a softer spring rate than CJ's adding to flexibility and ride quality. Stubby Kit versions with more front approach clearance also available.
Learn More
Why install a shackle reversal system? Because it allows the front suspension to travel in a much more natural action when the spring compresses. In stock form when the front tire comes in contact with an obstruction (shackles in front of the front axle housing), the impact is partially transmitted back to the frame via the solid rear pivot point. Reversing the pivot point to a point in front of the axle, it allows the impact to be better absorbed by the spring and shackle. The result is a more natural suspension flow over the obstacle, thanks to your Jeep shackle reversal system. At higher speeds, a smoother ride and improved handling are noticeable, while less wandering and darting are some of the advantages.
All M.O.R.E. Jeep® shackle reversal systems have a very important design feature built into the new front pivot brackets. They are designed to move the front axle forward from the stock location. When the shackle is reversed to behind the front axle, it will swing rearward and the tire will move slightly aft as the suspension compresses. Pushing the wheelbase forward will help keep the tire from contacting the fender during suspension compression. This is the only correct way to design a shackle reversal system. With this in mind, the front drive shaft will have to have a longer travel slip-yoke installed (in most cases) by a professional drive line shop.
The bracketry on the shackle reversal system is manufactured from .250" thick steel, cut with CNC laser, for .004 of accuracy. All pieces of the Jeep® shackle reversal system are precision bent to exact tolerances and assembled in jigs, and then M.I.G. welded. All hardware is grade 5. Complete instructions with several pictures are included.
Mountain Off-Road Standard Shackle Reversal Kit with Weld In Shackle Mount Options
Part Number
Catalog #
Option
Price
7686-2
12590-0110
Black Powdercoat
$370.48
7686-2NP
12590-0111
Bare Steel
$356.03
Description
The M.O.R.E. Jeep® CJ "through" the frame shackle reversal system is a bolt on and weld in construction with all hardware included. A shackle reversal system or "SRS" allows the front suspension to travel in a much more natural action when the spring compresses. The new front pivot brackets are fully welded, and ready to bolt into existing holes in your CJ frame. Spacer plates are provided for the purpose of different winch mounting possibilities, and/or if you choose to use our Frame Plates (FP100 or FP300). The shackle plates provided in this system are 3/8" thick steel. This S.R.S.™ mounts the shackle "through" the frame. A hole must be drilled in the frame and then a tube welded in it, polyurethane bushings (provided) are then inserted into the tube and the shackles (provided) hang from each side of the frame. This method will not lift the Jeep®. The front driveshaft will need to be modified with a long travel slip in stub. It will work with or without a lift kit, spring under or over the axles. This kit designed for Wrangler YJ Springs comes with wider tubes and bushings to insert in the frame so you can install the wider Jeep® YJ Wrangler springs. Why, you ask? The Wrangler springs typically have a softer spring rate than CJ's adding to flexibility and ride quality. Stubby Kit versions with more front approach clearance also available.
Learn More
Why install a shackle reversal system? Because it allows the front suspension to travel in a much more natural action when the spring compresses. In stock form when the front tire comes in contact with an obstruction (shackles in front of the front axle housing), the impact is partially transmitted back to the frame via the solid rear pivot point. Reversing the pivot point to a point in front of the axle, it allows the impact to be better absorbed by the spring and shackle. The result is a more natural suspension flow over the obstacle, thanks to your Jeep shackle reversal system. At higher speeds, a smoother ride and improved handling are noticeable, while less wandering and darting are some of the advantages.
All M.O.R.E. Jeep® shackle reversal systems have a very important design feature built into the new front pivot brackets. They are designed to move the front axle forward from the stock location. When the shackle is reversed to behind the front axle, it will swing rearward and the tire will move slightly aft as the suspension compresses. Pushing the wheelbase forward will help keep the tire from contacting the fender during suspension compression. This is the only correct way to design a shackle reversal system. With this in mind, the front drive shaft will have to have a longer travel slip-yoke installed (in most cases) by a professional drive line shop.
The bracketry on the shackle reversal system is manufactured from .250" thick steel, cut with CNC laser, for .004 of accuracy. All pieces of the Jeep® shackle reversal system are precision bent to exact tolerances and assembled in jigs, and then M.I.G. welded. All hardware is grade 5. Complete instructions with several pictures are included.
