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 Post subject: Drive shaft length?
PostPosted: Thu Jan 09, 2014 5:24 am 
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Supercharged

Joined: Sun Jun 04, 2006 4:53 pm
Posts: 4295
Location: Gaithersburg MD
Car Model:
I need a drive shaft for a 111" wheelbase car, 904, and 8 1/4" rear. I need to know how long a shaft fits this combo. Normally I would just have one custom made, but I only need this to work long enough to make sure the 904 works correctly, and then I will cut it down when the GV OD is added.

So when I go searching for a shaft either in a yard or a fellow member's stash, it would be nice to have a measurement to go for. If some fellow forum member has the same combo, maybe they could measure overall length over u joint end caps. I know this is not easy to do, so much thanks in advance.

Sam

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 Post subject:
PostPosted: Thu Jan 09, 2014 6:19 am 
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Turbo EFI

Joined: Sat Feb 19, 2005 9:57 am
Posts: 1818
Car Model:
grab a tape and measure...between trans and rear yoke
....if no yoke in trans .your measure would be up to where yoke slide to seal on new shaft


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 Post subject:
PostPosted: Thu Jan 09, 2014 7:42 am 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
There used to be a page at Auto Hobby Digest with a list of the driveshafts by length and their application. The Internet Time Machine coughed up a copy for me years ago and I have it saved, but at home and I'm currently at work. If you're a Moparts member it appears someone may have attached the list to a post, but I can't quite tell because of the web filtering they do here.

http://board.moparts.org/ubbthreads/sho ... er=4770137

I checked from my phone and could see part of the chart even without logging in to the forum.

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Last edited by Joshie225 on Thu Jan 09, 2014 10:02 am, edited 1 time in total.

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 Post subject:
PostPosted: Thu Jan 09, 2014 9:40 am 
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Supercharged

Joined: Sun Jun 04, 2006 4:53 pm
Posts: 4295
Location: Gaithersburg MD
Car Model:
Trans is not in car yet. Trying to shop now.

Sam

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 Post subject:
PostPosted: Thu Jan 09, 2014 4:16 pm 
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Board Sponsor
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Joined: Mon Oct 28, 2002 2:42 pm
Posts: 694
Location: Santa Cruz, CA
Car Model:
Just crawled under my '71 Dart, which has a 111" wheelbase. (904/slant). Awhile back, I swapped discs onto the front and an 8-1/4" rear onto the back to upgrade the 7-1/4" that came on it. When I did that, I had the original driveshaft cut down and re-balanced.

Ballbark length (U-joint centerline-to-U-joint centerline) is about 52". That isn't 100% accurate down to the fraction of an inch, because I didn't have anybody just now to hold the far end of the tape in place. So I marked the shaft mid-way, measured from each centerline to the mark and then added the two measurements together. So I think that's pretty close.

Hope that helps.

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 Post subject:
PostPosted: Thu Jan 09, 2014 4:24 pm 
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Board Sponsor & SL6 Racer

Joined: Wed Oct 23, 2002 7:57 pm
Posts: 9055
Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Sam,

Ryan has a driveline out of his Dart right not. He should be able to get you a measurement. His is a 8 3/4 so you would need to subtract for that distance. Just give him a call.

Rick

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 Post subject:
PostPosted: Fri Jan 10, 2014 4:36 am 
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Supercharged

Joined: Sun Jun 04, 2006 4:53 pm
Posts: 4295
Location: Gaithersburg MD
Car Model:
Rick, Ryan and I have been in communication. There is a good chance he has a drive shaft for me if I can get a measurement. It sounds like Red has answered the question for now. I will PM him with the information.

Thanks Red! Much appreciated!

Sam

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