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#1 |
Pronounced "Pew-al-up"
Join Date: Oct 2002
Location: Puyallup, Washington
Posts: 845
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Does anyone know what the stock differential ratio's in a 1970 1/2 ton were?
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Classic GM Trucks of Washington Club Member 1970 FS chevy,350/350, Edelbrock cam and intake. Holley 650 carb,HEI,AT,Tangier Orange, 18's, Power Locks, Truck Photos |
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#2 |
Almost Satisfied
![]() Join Date: Mar 2002
Location: Springfield, MO
Posts: 2,932
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I'm not 100% sure but I believe most v-8s had the 3.07. 6cyl had the 3.73.....of course it could have been optioned in various ways. If you can pull the numbers off the passenger side axle tube the guys on here can decode it and tell you. Mine decoded out to a 3.73 and it originally had a 6cyl, but when I cracked it open I found 3.07
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1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far." |
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#3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Which just goes to show you can't count on stock stuff in a 30+ year old diff.
I say pop off the cover and count the teeth. Fill it with fresh oil while your in there too. |
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