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08-25-2005, 11:38 AM
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#1 |
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Registered User
Join Date: Dec 2001
Location: Spring Creek, nevada. U.S.A.
Posts: 456
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gear ratios
what gear ratios usally came with the small block v-8 granny low 4-speed combos? i have a 70 parts truck with a good rear end and the glove box says limited slip.so i was just wondering if it might be a 3.08 ratio or if it would be more like a 3.73. i quess i don't want to lay out in the dirt and pull the cover.
thanks john
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69 chevy short wide box project 70 GMC jimmy project |
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08-25-2005, 12:27 PM
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#2 |
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Registered User
Join Date: Aug 2005
Location: pleasanton, CA
Posts: 570
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the stock is 3.73 i believe, but you could have up to 4.10's. but if you had 4.10s i think it would say on the sticker in teh glove box
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-Steve |
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08-25-2005, 02:23 PM
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#3 |
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Registered User
Join Date: Dec 2001
Location: Spring Creek, nevada. U.S.A.
Posts: 456
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thanks for the info,igot off my lazy you know what and took the cover off and fopund a posi plus 3.08 gears.
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69 chevy short wide box project 70 GMC jimmy project Last edited by Johns70; 08-25-2005 at 04:19 PM. |
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08-25-2005, 05:14 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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your gear set was chainged later on. 3.73 is standard with the 4 speed, and the option list would have mentioned 3.07 gears if so optioned. Also the fact that you could not get 3.07 with posi also confirms yours is not stock. (esp if you actually have a 3.08....that was never offered in the trucks of this generation)
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08-25-2005, 05:25 PM
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#5 |
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Registered User
Join Date: Dec 2001
Location: Spring Creek, nevada. U.S.A.
Posts: 456
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i'll have to go look at it again to make sure thats what it is. it says 14.43 on the ring gear?
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69 chevy short wide box project 70 GMC jimmy project |
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08-25-2005, 05:33 PM
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#6 |
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Registered User
Join Date: Dec 2001
Location: Spring Creek, nevada. U.S.A.
Posts: 456
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went out and looked again and thats whats in it. the numbers on the ring gear are
3817779 14:43 gm 06-69 and on the glove box door it lists g80 positrac rear axle. i looked for the build sheet but i couldn't find it under the seat springs.
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69 chevy short wide box project 70 GMC jimmy project |
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08-25-2005, 05:58 PM
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#7 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Hmmmm.......interesting.
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