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#1
10-25-2018, 04:01 AM
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What's is worth
1970 Chevelle 12 bolt posi rear end complete with GM 3:73 gears that were factory. September 1969 date code
Wondering on a value?? Thanks Rich
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"This is Sheriff Buford T. Justice, I'm in pursuit of a black Trans Am, he is all mine so stay out of the way" Last edited by Mr. Chevy; 10-25-2018 at 04:04 AM. 
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#2
10-25-2018, 11:16 AM
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What's it Worth
Being it's a 3:73 and a September 1969 date, it would have most probably came in a 396 / 375 car. Only 3:31 and 4:10 came with MOST 454's. That being said I value it at $3500.00 FWIW.
Bill
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#3
10-25-2018, 11:46 AM
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What's the code on the tube? 3.55 would have been the standard gear for a 1970 L78 with 4.10 being optional. I don't think a 3.73 was offered in 1970 Chevelles.
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70 Chevelle Vert L34 M21 28-A 791 70 Chevelle Cpe LS6 M40 14-14 756 70 Chevelle Cpe L?? M?? 926-99616 755 69 Chevelle Cpe L78 M21 71-B 756 70 Chevelle Cpe L34 M20 48-48 796
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Big Block Bill (10-25-2018) | ||
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#4
10-25-2018, 02:13 PM
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It wasn't,but a 2.73 posi was,(Non SS)...could it be a 2.73 you have there?
The 1970 Camaro was available from the factory with a 3.73 though. Last edited by Mr70; 10-25-2018 at 03:20 PM.
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Big Block Bill (10-25-2018) | ||
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#5
10-25-2018, 02:52 PM
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FWIW, I had a 10/21 stamped CRV rear. Seems a bit ahead of the game. IF I'm correct, chevy had everything in place for the 454 debut but the revised Muncie?? Kinda makes it seem plausible.
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#6
10-25-2018, 03:27 PM
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70 Camaro would be COZ coded for 3.73
Buddy
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69 camaro Z-28 burnished brown X-77 bought 1978 70 camaro Z28 forest green M40 black vinyl roof PROJECT 99 camaro SS Hugger Orange 6speed no t-tops 1 of 54 11 cts-v black diamond edition wagon 556hp GONE 15 camaro Z/28 white AC brand new
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#7
10-25-2018, 03:33 PM
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September 69 is way too early for a 70 Camaro , not to mention the leaf spring-coil spring difference.
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70Z28 04B Norwood Forest Green-white Stripes Black DeLuxe Interior Owned since 1978 - First Car
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#8
10-25-2018, 05:08 PM
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Agree,I wasn't trying to say he has a 3.73 COZ Camaro rearend there,(as I'm sure Rich knows the difference),just that that was the only 1970 Chevrolet car model that could get one from the factory I believe.
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YENKO DEUCE REGISTRY (10-25-2018) | ||
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#9
10-25-2018, 10:18 PM
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I bought a 1970 Chevelle SS396 when I came home from Vietnam in early 1971. It had a 4-spd and the 3.73 posi. I can't tell you the build date of the car or the axle code because it wasn't important at the time. It does seem that at least a few were built with that ratio.
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Robert _______________ 1969 Chevelle SS396 L78 M21 4.10 2023 Stingray Coupe Z51
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#10
10-25-2018, 10:32 PM
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No 1970 GM A-body came with factory-installed 3.73 gears. Some Olds W27 option rear, W30 442 , 4-speed non-AC guys will try to say different but I have yet to see docs out of one of 'em.
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I ain't nobody, dork.
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