Go with 4.10s. Great gear, really woke the car up. On the highway at 75 I only tach about 500 more RPMs. Gas mileage didn't change much, however I can't keep my foot out of it...
don't forget to consider 3.90's. yukon makes a good one and it's what i was lookin at puttin in mine until i decided it's time to bump to a termy!! my shop told me that it'd be my best all around gear since the mach 1 is my daily
No one has asked if it's an auto or 5spd. Different redlines between the 2. How hi do you want to spin the rpms going thru the traps? stock redline or is it gonnna be bumped up.