I just got through installing a ford 8.8 which was re-geared to 4.56 from east coast gear supply. My front is stock so I removed the driveshaft. I really dont notice any difference at all with the regear. I also have not driven my jeep for over 6 months so may have lost the feel. How can I tell for sure if I have 4.56 gears?
in first gear I get up to 15 and approximatley 3000rpm before shifting into 2nd, and havent taken it out on the highway yet. I also have 33x12.5" tires