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09-15-2008, 01:56 AM
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#1 |
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Registered User
Join Date: Oct 2007
Location: Portland, OR
Posts: 49
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New 1975 GMC to me
I just bought a 1975 GMC 4X4 Truck and was wondering what gear ratios my axles could be they are DANA 60 in the rear DANA 44 up front small block truck 3/4 ton wuth a manual trans also I was wondering what the trans could be any info is greatly appreciated Thanks
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09-15-2008, 02:07 AM
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#2 |
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Registered User
Join Date: May 2007
Location: CO
Posts: 475
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Re: New 1975 GMC to me
The tranny should be a SM465. As far as gear ratios go, I would guess it would have 4.11's, although you could have 4.56's or 3.73's (I think they were available in the 3/4 tons).
Last edited by Prong; 09-15-2008 at 02:08 AM. |
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09-15-2008, 03:46 PM
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#3 |
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Registered User
Join Date: Oct 2007
Location: Portland, OR
Posts: 49
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Re: New 1975 GMC to me
Is there a site that I can go to for this year of truck to look it all up and is the trans a Saginaw or a non gm brand?
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09-15-2008, 08:41 PM
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#4 |
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Registered User
 
Join Date: Jun 2007
Location: Springfield Mo.
Posts: 1,086
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Re: New 1975 GMC to me
Check this one out. http://73-87.com/ It belongs to one of our board members here. All you ever wanted to know and then some. If you can't find what you're looking for drop Jeff an e-mail. He will help you out. ...Joe
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