I thinking about change my gears in my truck from the current 4.10s to 3.55s.I going to do both front and rear(4WD).Has anybody done this? If so the pros and cons.Any thing that has to be done to the trans.I want to change this before I get a new trans.Thanks for the input.(I should of did it when I had the front end apart)

 

just the gear change and then having your speedo calibrated for new gears is all that I can think of.