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06-09-2023, 01:10 PM
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#1 |
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Registered User
Join Date: Nov 2022
Location: St Johns County, FL
Posts: 14
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My 71 GMC
Any feedback on these rear end numbers. Thx.
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06-09-2023, 01:13 PM
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#2 |
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Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
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Re: My 71 GMC
The 14 and 43 indicate you have a 3.07 gear ratio. 43 divided by 14 is 3.07142857. A great highway gear.
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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06-09-2023, 01:25 PM
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#3 |
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Senior Member
  
Join Date: Jan 2005
Location: CA
Posts: 5,329
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Re: My 71 GMC
I believe F 29 0 means the following:
F = June 29 = 29th day of the month 0 = 1970 |
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06-09-2023, 03:26 PM
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#4 | |
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Registered User
Join Date: Jul 2021
Location: Keller, Texas
Posts: 442
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Re: My 71 GMC
Quote:
That makes sense, then the 7 70 would mean July 1970 then. |
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06-09-2023, 04:25 PM
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#5 |
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Registered User
Join Date: Nov 2022
Location: St Johns County, FL
Posts: 14
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Re: My 71 GMC
OK thx.
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