cheasfridge
New Member
- Joined
- Feb 10, 2014
- Messages
- 5
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 1990
- Make / Model
- Ford
- Engine Size
- 2.9
- Transmission
- Manual
So I have recently acquired a 1990 BroncoII 2.9, 5speed, 4x4. About 90k miles. Last week I was driving it home from classes which is about 40-50 miles away. It started having a moderately loud vibration and rumble under acceleration from a stop, and then again around 45-55mph. I got it home and parked it.
This Saturday we trailered it to the shop to take a look at it, but didn't find anything obvious. One of the CV joint boots on the rear driveshaft was damaged however so we replaced it. Took it for a drive and everything seemed great.
We then put it back in the shop to try to convert the auto locking hubs over to manual so the 4x4 would work. The conversion went well, and my dad drove it around to make sure. At this point the rumble came back worse than before. My dad said he felt an extreme drag and says it sounded like a tire was grabbing/skidding. He took the cover off the rear end, checked for slop in the wheel bearings, and took the brake drums apart. We're stumped. We'd like to see if anyone has any ideas before we get too serious about tearing into it.
TL;DR:
Vibration, rumble and dragging. Replaced rear cv driveshaft, checked front bearings, semi-checked rear bearings, checked rear end. Fixed 4x4, still having rumble, vibration, and dragging.
This Saturday we trailered it to the shop to take a look at it, but didn't find anything obvious. One of the CV joint boots on the rear driveshaft was damaged however so we replaced it. Took it for a drive and everything seemed great.
We then put it back in the shop to try to convert the auto locking hubs over to manual so the 4x4 would work. The conversion went well, and my dad drove it around to make sure. At this point the rumble came back worse than before. My dad said he felt an extreme drag and says it sounded like a tire was grabbing/skidding. He took the cover off the rear end, checked for slop in the wheel bearings, and took the brake drums apart. We're stumped. We'd like to see if anyone has any ideas before we get too serious about tearing into it.
TL;DR:
Vibration, rumble and dragging. Replaced rear cv driveshaft, checked front bearings, semi-checked rear bearings, checked rear end. Fixed 4x4, still having rumble, vibration, and dragging.