shortshift
Junior Member
- Joined
- Jun 14, 2022
- Posts
- 11
- Reaction score
- 17
- Location
- Seattle
- First Name
- Jim
- Truck Year
- 1977
- Truck Model
- 1500
- Engine Size
- 350
Bought 3 new rear drums and they all vibrate, shake the truck when spinning them without the wheel installed. If i run the axle alone up to speed, no vibration. Put the drum on and vibration... Am i missing something. The original (on the truck) does the same. Already had the driveshaft checked, but am sure that isnt the issue anyway, because it only occurs when drum is on the axle..Beginning to think these drums are defective
