Nolan M
Junior Member
- Joined
- Jun 26, 2020
- Posts
- 4
- Reaction score
- 2
- Location
- Suwannee
- First Name
- Nolan
- Truck Year
- 1984
- Truck Model
- C30
- Engine Size
- 350
So I just bought a 1984 c30 knowing it was missing reverse. I drove it home (about 30 miles) with no problem just riding in second at 40 mph because it had bad tires. Replaced the tires and took it for a drive. It shifted fine between 1 and 2 but wouldn’t go to 3, checked the trans fluid and added about a quart. After that it would go to a neutral when you got to 45 mph. I’m guessing it’s slipping.
I bought a new vacuum modulator as someone said it could be the issue. After installing that, it only has first gear and will slip in first at about 15 mph. Any advice would be so helpful
I bought a new vacuum modulator as someone said it could be the issue. After installing that, it only has first gear and will slip in first at about 15 mph. Any advice would be so helpful