Mike21
Junior Member
- Joined
- Feb 2, 2021
- Posts
- 6
- Reaction score
- 7
- Location
- SW Colorado
- First Name
- Mike
- Truck Year
- 1985
- Truck Model
- Chevy K10 SWB
- Engine Size
- 305 upgrading to a 350
I have an 85 k10 SWB I am restoring it had the 305, th700R4, NP203 and 10 bolt axles with 3.73. I am planning 325-400 HP with a built 700R4 and I plan on a lift and 35in tires. Thinking 4.10 or 4.56 gears. Can a 10 bolt handle this? What upgrades are out there? While on the subject, anyone know what a NP203 can handle?