78C10BigTen
Full Access Member
- Joined
- Apr 12, 2017
- Posts
- 15,921
- Reaction score
- 25,246
- Location
- pennsylvannia
- First Name
- Ted
- Truck Year
- 1978
- Truck Model
- C10 BIG TEN
- Engine Size
- 350
Ive always used 80-90I'm going to change diff gear oil today. What weight do yall use? 75-90 or 75w-140?