Replace your flimsy factory torque arm with a durable Spohn tubular version and put the power where it belongs - the pavement! Built from 1.25" x .120" tubing with a heavy-duty 3/8" rear mounting bracket. Bolts directly in place of factory torque arm using all factory mounting locations. Requires no welding or drilling. Equipped with an adjuster for changing pinion angle and a new, low deflection polyurethane front bushing.

If you want serious performance, handling, and traction when you're at the dragstrip, AutoX, or road racing; then you need a Spohn Performance fully adjustable torque arm, here's what it'll do:

• Attaches to the rear axle and controls rear end torque during acceleration, transferring this energy into the tires, increasing straight line traction
• Reduces nose-dive during braking
• Eliminates wheelhop
• Increases sidebite during corner exit acceleration
• Bolt-on system does not require complete interior removal as with other kits
• No fabrication, welding or drilling required - 100% bolt-in installation!
• Provides adjustable pinion angle
• FREE angle finder included to set pinion angle

Build Specifications:

• Constructed of 1.25" o.d. x .120" wall DOM (drawn over mandrel) seamless mild steel tubing
• Front "stub" of torque arm is reinforced by TIG welding a piece of 1" solid 4140 chrome moly into the i.d. of the front snub. This is the strongest transmission mounted torque arm on the market = bullet-proof!
• TIG welded 4130 chrome moly threaded tube adapters
• Heavy-duty 3/8" thick steel rear housing mounting plates
• Polyurethane bushing front mount for minimal road noise
• Rear of torque arm mounts to the 3/8" thick steel rear housing mounting plates via two 3/4"-16 NFT x 5/8" bore x 7/8" thick solid steel rod ends. These are solid rod ends, not spherical bearing rod ends, so noise is of no concern. Grade 8 - 5/8" bolts and 5/8" nylock nuts are used.
• Integral Pinion Angle Adjuster between the bottom rear solid rod end and the bottom rear torque arm tube allows for easy pinion angle adjustment. A simple turn of the wrench will give you 6 degrees of pinion angle adjustment, it's that simple.
• Entire package is a complete bolt-in assembly using existing mounting points on the vehicle. No drilling or welding is required!  
• This is a proven product being run on some of the fastest F-Bodies in the country!
• Rear mounting bracket is designed to fit on the OEM rear or an aftermarket 12 bolt or Ford 9" rear
• Available powder coated red or black.
  
  

NOTE:  1982-1992 cars require the use of a factory torque arm bushing clamshell mount designed for bushing type 7-1609. If your vehicle is equipped with a 7-1611 type bushing, you will need to get the 7-1609 type clamshell. (See below pictures) This does not apply to 1993-2002 cars.

4130N Upgrade: The ultimate in bullet-proof lightweight strength, 100% TIG welded chrome moly construction! Same as above, but torque arm is constructed entirely from 1.25" x .095" 4130N chrome moly tubing.