pathfinder_se_black wrote:would going up a size in tire be bad for a 2wd? or would i have to change my gearing if i wanted to do this?
Not at all!
Pros: higher ground clearance, better off roading, less getting stuck, lower engine RPM on freeway Cons: slower acceleration, slower braking, no more 90 mph curves As far as the gearing goes, you only have two easy choices and those are 4.363 and 4.636. There are the two sets of gearing that came in 96-04 R50s. The 4.636 is definitely the one you would want for larger tires. If you want to check which one your Pathfinder / QX4 is equipped with, go look in your engine bay at the metal plate with VIN stamp and all that info.... there should be a 4 digit code that says HG46 or HG43.... if you want to upsize your tires and maintain good acceleration characteristics, you should hope to see HG46!