[Mike Braddock]

Andy,

The Mk8 rear will work very well in your car. EM has done their homework and sell a well engineered package. The IRS is better in all respects except price and ultimate strength. These units will take 500 hp and the same torque with no problems, so don't worry about that; it's not an issue. And will all due respect, HPD is incorrect about the gear swap as well--it costs little, if any, more than a standard 8.8" gear swap and all the parts are the same. The only item which is different is the aftermarket posi units, if you decide to go with one, as you need one that will hold the retaining rings which the solid 8.8" doesn't have. Auburn and others sell them.

3.73 gears and a tremec would make a wonderful combo. The IRS will give you a better ride and you'll recoupe the extra investment when it comes time to sell the car. Good luck and keep us posted.

Mike