Klinthill544
Junior Member
- Joined
- Mar 5, 2013
- Posts
- 15
- Reaction score
- 12
- Location
- Tennessee
- First Name
- Klint
- Truck Year
- 1978
- Truck Model
- K1500
- Engine Size
- 402 BB
so, when I take off from a stop under normal driving conditions say 25% or less throttle my trans won't shift out of first.. In drive or manually. But, if I take off under heavy throttle, 50% or higher, it's shifts through the gears fine 1-3rd.. Any help would be greatly appreciated, thanks!