c30bob
Junior Member
- Joined
- Mar 27, 2021
- Posts
- 3
- Reaction score
- 0
- Location
- PA
- First Name
- Bob
- Truck Year
- 1974
- Truck Model
- c30
- Engine Size
- 350
Hello! After a long winter I decided to finally start playing with a project I bought last fall, a 1974 c30 dually. The right rear wheel locks up with just forward motion, with out touching the brakes. Jacked up, with the wheel in the air, it spins free. I unhooked the brake line from that wheel cylinder and plugged the line. Still, forward motion, without touching the pedal, the wheel locks up. I backed off the parking brake, same deal. I'm thinking it's a mechanical issue with the parking brake internals in that drum, but I'd love some wisdom before I tear into it! Thanks