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Longest stock 1 piece drive shaft? #2511381
06/21/18 04:16 PM
06/21/18 04:16 PM
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Posts: 304
Atlanta, GA
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mgoblue9798 Offline OP
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Atlanta, GA
I have a club cab long bed with short tailshaft trans and carrier bearing.
I am converting to 518 and would like to know if anyone has done this and scored a used driveshaft long enough to make this work. Any idea what the longest one piece shaft in the wrecking yards might be?

Re: Longest stock 1 piece drive shaft? [Re: mgoblue9798] #2513609
06/26/18 06:27 PM
06/26/18 06:27 PM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
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no clue, but I can tell you that my 2006 Megacab cummins/auto has a one piece shaft that's a mopar factory/dealership piece. It's aluminum, about 5" or 6" in diameter, and VERY long.


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Re: Longest stock 1 piece drive shaft? [Re: mgoblue9798] #2513620
06/26/18 07:02 PM
06/26/18 07:02 PM
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Posts: 1,941
colorado
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savoy64 Offline
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savoy64  Offline
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colorado
vans have long one piece also--later ones are aluminum as well

Re: Longest stock 1 piece drive shaft? [Re: mgoblue9798] #2515827
07/01/18 01:10 PM
07/01/18 01:10 PM
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Posts: 14,211
Norwich CT USA
moparts Offline
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moparts  Offline
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Posts: 14,211
Norwich CT USA
Talk to your local Driveshaft shop

I know that the center bearings are needed after a ? length


Tom ,

2011 Ram 3500 C&C Diesel
2009 Challenger R/T
1983 CJ7 , 5.2 Magnum, 727, Dana 300/44/60
1971 Challenger Conv. 511/4 speed
1970 Challenger R/T 503/727


Re: Longest stock 1 piece drive shaft? [Re: mgoblue9798] #2516187
07/02/18 12:45 AM
07/02/18 12:45 AM
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Posts: 6,715
Freeport IL USA
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poorboy Offline
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Freeport IL USA
An 04 quad cab Ram with a Hemi drive shaft is between 71" and 72" u joint center to u joint center. The shaft is laying inside a car and I can't get a good angle to see the exact measurement (darned bifocals). This aluminum shaft is 4" in diameter.

I also have some B Van shafts that are as long and possibly longer, and larger in diameter that I didn't measure. I figured a Hemi Ram aluminum driveshaft that is 71+" long at the joint canters should cover the question. Gene

Re: Longest stock 1 piece drive shaft? [Re: poorboy] #2518085
07/05/18 06:38 PM
07/05/18 06:38 PM
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Posts: 304
Atlanta, GA
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mgoblue9798 Offline OP
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Atlanta, GA
Thank you to everyone for your replies. The two piece shaft that is in it now is a small diameter. Afraid the shafts and carrier bearing would not hold up long with the 440 I plan to use. Since Ma Mopar has a 6 ft or so shaft in the vans and trucks I see no reason I could not use it in my build, provided it is long enough.

Re: Longest stock 1 piece drive shaft? [Re: mgoblue9798] #2519386
07/09/18 01:33 AM
07/09/18 01:33 AM
Joined: Dec 2005
Posts: 576
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finn Offline
mopar
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Do a google search for “driveshaft critical speed”. There’s a ton of information out there on the subject of driveshafts and their design that you may want to peruse before you fab something up.


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