So I have a 1991 Ranger, 4.0 with 4 speed auto transmission. It has developed a vibration that really kicks in after shifting into overdrive. It didn't do this until a few weeks ago and nothing else changed on the truck. I searched through this forum and can't find much that relates. So does anyone have any ideas on this? I have checked the driveshaft and u-joints and they are good and tight, no worn parts. Changed fluid and filter but still have the same vibration/studder. And it isn't a tire issue either. This seems to start some in 3rd gear and really vibrates in O/D.
Couple of pics of the truck. Really clean 2 owner.
Couple of pics of the truck. Really clean 2 owner.