Dec 1, 2025 #16 R Ricko1966 Full Access Member Joined Apr 11, 2017 Posts 9,940 Reaction score 19,066 Location kansas First Name Rick Truck Year 1975 Truck Model c20 Engine Size 350 2x and 4x show to be the same pump.
Dec 1, 2025 #17 xm20k Runs on 93 octane, caffeine, and spite Supporting Member Joined May 26, 2025 Posts 1,109 Reaction score 2,847 Location Girard, Ohio First Name David Truck Year 78 Truck Model c10 Engine Size 388 Measure the pully and tell us what it is. I'm betting it has the big pully and should have the small one, so it turns faster.
Measure the pully and tell us what it is. I'm betting it has the big pully and should have the small one, so it turns faster.