Your lifted Jeep Wrangler runs hot on the freeway what is the cause?
Bigger tires changing your gear ratio say if you had like 3.50
before you put your bigger tires on your stock tire use to do a
full rotation every time the drive line spins 3 and a half times
now that you have bigger tires your no longer doing a full rotation
for the 3 and a half turns so at freeway speeds your engine is
revving a lot higher :)