Might say on title
The curb weight of the 1979 Sierra regular cab depends on the type of model. The average weight is around 2,600 pounds.
3/4 ton.
On the papers mine said 3200kg, so I think roughly 7000lbs.
Absolutely.
C20 was Chevy's designation for a 3/4 ton. 2500 was GMC's designation for a 3/4 ton. Basically they are the same.
from a library
134 freon
Yes.
SAE 10W30
I have an 1986 Chevrolet C20 (longbed pickup, not Suburban) factory 454, 400 turbo, factory heavy duty emissions vehicle (oil and tranny cooler, HD steering stabilizer, HD springs, duals, no cats) and I tow my 12,000lb 42' bumper pull with the Equal-i-zer hitch and Prodigy brake control. It goes right on down the road at 5-6mpg.
Before 1998 - no. 1998 and after - yes.
No it doesn't it has a straight Axel