Rear end

Ok what if it's 2.76?
You might want to think about swapping gears before doing it. 2.76 with a 26" tire gets you 2500-2600 RPM cruise at 70....3.55's, the engine is cranking at 3300-3400 at the same MPH. you could also look for a 998 transmission out of a 5th ave/diplomat. they have a 2.74/1.54/1 1st/2nd/3rd instead of 2.45/1.45/1 they also have a lockup converter. the deeper first gives you the same gear multiplication as a 2.45 1st with a 3.09 rear end....if you plan on taking the car where you'll be cruising on the interstate, 3300 RPM gets real old real fast.