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Today, 12:28 PM | #1 |
Registered User
Join Date: Jun 2009
Location: COOKEVILLE,TN
Posts: 145
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'67 12 bolt gear ratio
I have a '67 Chevy SWB frame with a 12 bolt....trying to figure the ratio, best I can tell it comes out to be a 340. I don't know if it's really a 336,342 or 355. Guess I'll have to pull the cover off. I think it was an I6.
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Today, 01:23 PM | #2 |
State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,894
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Re: '67 12 bolt gear ratio
If your count is correct it is probably a 3.42. I have not heard of a 3.55 or 3.36 used on GM trucks.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
Today, 02:36 PM | #3 |
Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,271
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Re: '67 12 bolt gear ratio
My truck ['68 C/10 Stepside] came with a Factory 292 L6 and a 3.73 rear end ratio.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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