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...