Its no secret that stock IRS components can be a real weak point in these cars. Once power levels exceed the limitations of the stock diff, upgraded axles may hold up, but they expose the weak points in the differential. This is where the GForce 9" becomes a necessary upgrade. The bolt-in 9" kit eliminates the flex, noise, "clunking" and weak points of the OEM rear. Plus, you have the confidence knowing you are putting your power through a race-proven bulletproof rear end, but you get all the benefits and advantages an IRS can provide. In addition, the GForce 9" kit comes standard with 35 spline inner stubs. In fact it is the only 9" IRS on the market with the beefy 35-Spline inner axle stubs.

The GForce 9" has been proven to support 2000+ in "real-world" applications. The GForce 9" kit holds IRS records in the 1/4 mile, standing mile and 2-mile in wheel standing IRS vehicles. It's safe the say the misconception that you cannot put power through an IRS and make it live has been officially debunked.

All GForce Engineering 9" housings are laser cut, bent on a CNC press brake and tig welded for flawless finish and unmatched strength. 9" kits can be purchased as a complete kit with pumpkin and driveshaft. Our preferred provider is Strange Engineering. GForce can also make you driveshafts specifically designed to work with the 9” replacement rear and most common transmission options.

The GForce Engineering fully fabricated 9" IRS for the Pontiac G8 is a complete bolt-in independent rear suspension that replaces your drive-line from the transmission back.

9" IRS Kit Includes:

• Fabricated 9" housing (bolts to factory locations)
• Heavy-duty front mount
• Solid aluminium or poly bushings
• 35 Spline Inner and Outer Stubs
• Outlaw 9" axles
• All necessary hardware
• Third member to housing
• Housing and front mount to cradle

Ordering Options

• Manual or Automatic Transmission
• Aluminium or Iron center
• Gear Ratio
• Spool or Strange S-Trac
• 3-1/2" or 4-1/2" O.D Aluminium 1-Piece Driveshaft

Product Reviews for GFCSS10902A - GFORCE