I have a 91 Wrangler with a 4 inch lift and 33 inch tires...I recently put in a rebuilt transmission and new clutch and was told that I should do a driveshaft angle reduction and gear swap...I currently have 4:10 gears and was told to switch to 4:88 gears...Is this necessary? What is the benefit? What are the drawbacks if i don't do it?
The Jeep is slow now and 5th gear is basically useless I am assuming from the lift and big tires with the 4:10 gears...
Any ideas? Oh yeah and what am I l