Jeff w Ashworth
Junior Member
- Joined
- Jun 2, 2021
- Posts
- 22
- Reaction score
- 1
- Location
- United States
- First Name
- Jeff
- Truck Year
- 1984
- Truck Model
- GMC
- Engine Size
- 350
I have a 1984 GMC 4X4, 700r4, T case 208, with a black speed O gear and at 60 miles per hour on a GPS speed O the in dash speed O shows 75 is there any way to slow it down.
