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Old Nov 15, 2008 | 06:53 PM
  #1  
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From: Bowling Green, ky
drive shaft question

I am putting together a 4x4 76 f100 with:
-302/NP435/205
-D44/9"
-4" lift springs in the front
-full length add-a-leafs in the rear with a shackle flip using a set of front
hangers in the rear

I have the frame already assembled for the most part and I am stumped.

does anyone know what style rear drive shaft came in this truck?
 
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Old Nov 15, 2008 | 07:00 PM
  #2  
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What do you mean what style?

If it's like mine, it is a single piece driveshaft with a slip joint in the middle and u-joints in both ends.
 
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Old Nov 15, 2008 | 10:47 PM
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With all the mods you are doing it may be easier to just have one made.
Also FYI to jumbofordman, if you have a slip joint in the middle of your shaft it's a two piece and will have a center support bearing. I may just be reading you wrong though.
 
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Old Nov 15, 2008 | 11:06 PM
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Yep, you are reading me wrong. I have no center bearing, but the slip joint is in the shaft. I have a 4x4, 205 transfer case, which has a yoke output, not splines.

I had one custom made after my stock shaft pulled apart during a hard stop. Guess 3" of lift is just a little much for the stock shaft. Incidentally, the stock shaft was the same (no center bearing.)
 
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Old Nov 16, 2008 | 04:35 AM
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Long beds use a two piece driveshaft with center support.

Short beds have a one piece driveshaft.
 
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Old Nov 16, 2008 | 05:18 AM
  #6  
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Colo79Ford
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Originally Posted by NumberDummy
Long beds use a two piece driveshaft with center support.

Short beds have a one piece driveshaft.
My 79 f-250 4x4 rear driveshaft has no center support... was the center support only an f-100 / f-150 thing?
 
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Old Nov 16, 2008 | 07:12 AM
  #7  
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From: Bowling Green, ky
it's a long wheelbase I guess I should have posted that up.

the info I was looking for was if it had the carrier bearing or not and if not did it have the 3 u joint "cv" style w/slip joint, or the 2 u joint slip style.

because of the mod's I am doing to the rear I need to know so I can set the pinion angle

here is another question:

I have a 76 2wd long wheelbase that I plan to gut to finish my truck up. can I use any part of that shaft to make this work?

it has the carrier bearing but it is a c4 truck so the shaft is solid.
 
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Old Nov 16, 2008 | 08:19 AM
  #8  
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I have only seen 4X2 with a carrier bearing, never seen a 73 thru 79 4X4 with a carrier bearing. F100 thru F350
 
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Old Nov 16, 2008 | 09:56 AM
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1975 F250 4X4 with NP205 transfer case Long bed NO center support two piece rear drive shaft.
 
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Old Nov 16, 2008 | 12:04 PM
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Again, I have a 78 F-150, long bed. NO center support bearing.
 
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Old Nov 16, 2008 | 12:11 PM
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73, 75, 77, 78, and 79 all long boxes all 4x4s non with center support bearing 74 F150 2x4 long box had center support bearing.
 
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Old Nov 17, 2008 | 07:38 AM
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awsome, that was the info I was looking for!

I am now off to find a factory shaft. thanks for the help.

Daniel
 
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Old Nov 17, 2008 | 08:02 AM
  #13  
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My parts truck is a 74 F100 4x4 with a C6/205 and has the carrier bearing. My good truck is also a 74 F100 4x4 with a C6/203 and it has NO carrier bearing. I always thought it was a little weird one had it and the other didn't. Just figured it had something to do with the C6/203 being so much longer then the C6/205 combo.
 
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Old Nov 17, 2008 | 02:35 PM
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Parts catalogs say:

D9TZ4800A .. Drive Shaft Center Support Kit / "Carrier" Bearing: 1.37" diameter.

Fits: 1961/83 F100 / 1975/96 F150 / Some 1961/96 F250's.

D4TZ4800C .. Drive Shaft Center Support Kit / "Carrier" Bearing: 1.57" diameter.

Fits: Some 1961/96 F250's / 1961/96 F350 & F(Super Duty).

Parts catalogs do not specify 2WD or 4WD under the 4800 listing.

The only way to find out if a particular truck uses a center support or not, is to look up the driveshaft & coupling shaft for each application.
 
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Old Nov 17, 2008 | 02:58 PM
  #15  
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Bill just out of curiosity since the top part number lists 75-96 I walked over and looked at the neighbors 91 F150 4x4 and it doesn't have the center support bearing, standard cab long box configuration.
It's got me curious and I am betting that it doesn't list it because on the ones that have it there is no difference between the 2wd and 4wd, example a supercab long box would have one 2 or 4wd, same thing with the crew cabs but the standard cabs would only have it in the 2wd. (did that make sense? )
Not sure how you would verify that with the books, like I said everyone I have owned that was a standard cab long box 4x4 did NOT have it, all same config 2wd DID have it and the supercab long box 4x4s I have owned (2 of them, 1 F150, 1 F250) DID have it.

Maybe just do a look at a for curiosity sakes a 77 F150 standard cab long box 4x4 drive shaft and see what configuration it shows it being and if it would need the support bearing or not? and see what we come up with.
 
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