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reido
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Posted 1 Month, 2 Weeks ago #1
what is the gear ration for a stock c/k1500 silverodo 1988
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HeavyD10000
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Posted 1 Month, 2 Weeks ago #2
3.73 was common, but there are several others that it could come with, there might be a tag in your glove compartment or in the engine bay somewhere that has a GMC code, or you can take your vin # to GM and they might tell you for free.
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svfixer
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Posted 1 Month, 1 Week ago #3
Also, if with a 700R4 auto trans. 3.42 was very common. I have a '88 GMC full size van with this setup.
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CrankyBadger
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Posted 1 Month, 1 Week ago #4
Don't Chevies have a metal tag with the ratio on one of the cover bolts ?
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svfixer
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Posted 1 Month, 1 Week ago #5
It's rumored that the posi-traction ones had a tag.

But also, usually on top of the, I'm gonna guess, left axle tube, they stamped code numbers that would give some info on the gearing.
Last Edit: 2010/02/07 13:51 By svfixer.
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