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Why do I have a 2-piece driveshaft?

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Old 08-01-2007, 08:44 AM
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Why do I have a 2-piece driveshaft?

(This is my regular cab dually I am talking about).

Did Dodge switch over to a 2-piece driveshaft for even the regular cab trucks in '96?

I was reading one of Infidels posts and he said the following about his '95 trucks:

Both my standard cab trucks came stock with one piece driveshafts.
Box5 also has a 1 piece, he has a '94 reg cab 4x4 dually also.

Was this because the 1 piece shafts can sort of "jumprope" at high speeds?

Just curious, somehow we got on this in another thread so I thought I'd let that one go back on topic.
Old 08-01-2007, 08:51 AM
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My 97' longbed has one-piece!
Brandon
Old 08-01-2007, 01:42 PM
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Mine's a one piece too. Maybe a 2wd thing? Could be the transfer case sits further back allowing a shorter drive shaft. . . just a thought.
Old 08-01-2007, 02:33 PM
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my 4x4 extra cab is a one piece shaft and its a 98.
Old 08-01-2007, 02:33 PM
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Exactly the jump rope thing!!! I had a car hauler (extended frame)with two that would "ring out" the long shafts every once and a while and the guy at the drive line shop said anything over 60 inches is questionable. I did not want to put three shafts in it though. But that is what he recommended to cure it!
Old 08-01-2007, 03:54 PM
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95 two wheel drive has a 2 piece shaft due to length. I just replaced the support bearing in mine at 237K.
Old 08-01-2007, 07:39 PM
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Both my 3500 & 2500 standard cab long beds are one piece.
Ford quit using two piece shafts a couple of years ago, too many problems related to the high diesel torque.
Old 08-01-2007, 10:12 PM
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Most of you guys are talking 2500srw, and Infidel's 3500 appears to be a srw - the first post is a 3500 drw - I've not seen a drw 'dooley' with a 1pc driveshaft, not even in the 2wd versions - it's the offset of the big Dana80 and the additional traction of the 4 rear rubbers - too much windup under heavy load with the increased drw GVWR - towing, hauling, all that stuff
Old 08-01-2007, 10:16 PM
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I've got the 2 piece in my reg. cab dually ('95)...just replced the center bearing last week as a matter of fact.
I also have an aluminum 1 pc. driveshaft removed from a '95 reg cab/longbed gasser...2WD IIRC.
I hate the 2 piecers'...mainly because my center bearing was a dealer only $100+ part
Old 08-02-2007, 03:02 AM
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Hmmm.... I have a 2pc
Old 08-02-2007, 06:20 AM
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Originally Posted by infidel
Both my 3500 & 2500 standard cab long beds are one piece.
Ford quit using two piece shafts a couple of years ago, too many problems related to the high diesel torque.
I dont understand why ford would question the strength of a 2 piece shaft many class 8 trucks and road tractors have 3 some even 3 piece shafts. Maybe ford just needs some design help.
Old 08-02-2007, 06:50 AM
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DB - you have 2500HD listed in your sig - what is that all about?
Old 08-02-2007, 11:44 AM
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Originally Posted by gmctd
DB - you have 2500HD listed in your sig - what is that all about?
Didnt some rams come with a 70 instead 80?
Old 08-02-2007, 11:54 AM
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Not sure about the years, but I know this:

2500 Auto - D70
2500 5spd. - D80
3500 Auto/Manual - D80

Not sure about first/thrid gen.

Never heard of a "HD" version though .
Old 08-02-2007, 11:56 AM
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Originally Posted by Digital Bullet
Didnt some rams come with a 70 instead 80?
Yep...2500 Auto's had the D70
2500 Manuals had a D70/D80 Hybrid...80 Center section with 70 Axles IIRC!

Chris
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