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08-29-2011, 02:43 PM
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#1 |
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Registered User
Join Date: Mar 2007
Location: Austin, TX
Posts: 292
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Driveshaft length?
I have a '79 C10 SWB w/ a TH400 trans to GM 12 bolt rear. My truck currently has a two-piece driveshaft, but I am installing a 700r4 so I will need a one-piece driveshaft. Does anyone know what length my one-piece driveshaft needs to be to fit properly?
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2008 Yamaha Zuma 50cc - Daily Driver 1979 Chevrolet Bonanza SWB; 357ci, TH400, 3.73 Posi - Daily Driver 1976 Chevrolet Sport Van SWB; 355ci, TH350, 2.73 Open - Rape Free  1972 Oldsmobile Cutlass S; 455ci, TH400, 2.73 Open - SOLD (but I still claim to own it from time to time) |
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08-29-2011, 04:16 PM
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#2 |
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Registered User
Join Date: Jun 2011
Location: Baytown TX
Posts: 2,219
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Re: Driveshaft length?
I have a drive shaft out of my 74 that measures 59.5in from center u-joint to center u-joint. The 74 had a 350ci with a TH350 short tail trans (6in tail shaft houseing) and a 12 bolt rear. If someone knows the difference in length between my TH350 and your 700R4you could deduct the difference, maybe this will help.
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John 82 Chevy Silverado 350ci/TH350 
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08-29-2011, 07:45 PM
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#3 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Driveshaft length?
Personally, I wouldn't trust a "calculation". Install it and measure, just to be sure. It's way to expensive to guess at....
__________________
You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right.
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08-29-2011, 08:16 PM
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#4 |
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Registered User
Join Date: Apr 2010
Location: Newcastle, OK
Posts: 1,344
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Re: Driveshaft length?
I agree, install and measure.
For what it is worth I measured for mine with the same tranny and rear-end as you and it was 58 3/8". |
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