I have a 1997 Nissan 4x2 Pickup with 180,000 miles that has developed a rear end vibration. Whenever I get between 50 and 55 mph I get a vibration from the rear end of the truck. If I let off on the gas it goes away, but when I give it the gas again its starts up. Replaced tires and gear oil, but its still there.
Any ideas on what I need to look for or replace?
Thanks for any help....................