Just got back from a camping trip. My XJ doesn't see highway driving normally, so I decided to put my hand on the diffs and see how hot they get. I can keep my hand on the front diff for 5 seconds and the rear for 3 seconds. I realize this isn't a great way to test, but I was wondering if anyone else has tried this and knows what "normal" is. I wasn't towing, but I was loaded down with gear.
Specs: 99XJ, 4.0, 231, HP30, Chr 8.25, 2" BB.
Specs: 99XJ, 4.0, 231, HP30, Chr 8.25, 2" BB.