The GForce Engineering fully-fabricated 9” IRS for the Pontiac G8 and Chevrolet SS is a complete bolt-in* independent rear suspension that replaces your drive-line from the transmission back. Includes a fabricated 9” housing that bolts to the stock differential mounting points. It also includes GForce bullet-proof Renegade axles, 35-spline inner stubs, new outer stubs and the option for your choice of driveshafts.
It’s 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 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 ¼ 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. If you are looking for something other than the options provided here. Please call out tech lines at (316) 260-8433
More about GForce Engineering Renegade Axles
GForce Engineering Renegade axles are CNC machined from aerospace billet alloy. The proprietary material has been closely compared to the popular 300m alloy. In both our testing and in third party testing, we have found our alloy to have a higher tensile strength making it a stronger axle than comparable 300m axles. In addition, these axles are engineered to absorb the “shock” of a hard launch.
The real strength of the GForce Renegade axles comes from the billet, CNC machined CV internals. Traditional CV’s in this size would use 28-spline axles and “CV stars”. In this case, GForce machines billet 31 spline stars and 31 spline axles. This provides tighter tolerances and less wear as well as additional strength from premium materials and more spline engagement.
GForce 9” Kits Include the following:
- Fabricated 9” housing (bolts to factory locations)
- Heavy-duty front mount
- Strange PRO HD-Aluminum Case, 35-Spline S-Trac
- Solid aluminum or poly bushings
- 35 Spline Inner and Outer Stubs
- Renegade 9” axles
- All necessary hardware
- Third member to housing
- Housing and front mount to cradle
- 3.5” aluminum driveshaft
Note: If you are interested in 31 spline diffs, the GForce 9” can be ordered with 31-spline inner stubs. Please call for more information on this application.
*Some modification may be necessary. i.e. exhaust, e-brake cables, etc.
GForce backs all their Renegade Axles and 9” kits with a lifetime warranty. Warranty is limited to the parts GForce Manufactures and is non-transferrable. For more details on the warranty, visit us here: https://gforce1320.com/warranty/