np435 + shortbed. driveshaft? - Ford Truck Enthusiasts Forums

Notices
1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

np435 + shortbed. driveshaft?

  #1  
Old 04-17-2018, 07:52 PM
koldham
koldham is offline
Freshman User
Thread Starter
Join Date: Mar 2016
Posts: 35
koldham is starting off with a positive reputation.
np435 + shortbed. driveshaft?

Hello all. I just installed a NP435 in my 68. the trans i got has a fixed output yoke from a long bed. I found a chart online that shows all the driveshaft lengths and part numbers for the long beds but not on the shortbeds. If i want to keep my trans tailshaft i need an expanding drive shaft. Does this list exist for shortbeds? or is the drivehshaft im looking for just the rear section from a longbed. the truck is not in a position quite just yet to be taken off the stands and set at ride height to measure what length i need. Or is this just a case of "slip yoke tailshaft or custom driveshaft, no exceptions".
 
  #2  
Old 04-17-2018, 09:16 PM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist
Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 78,593
NumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputation
Originally Posted by koldham View Post
Hello all. I just installed a NP435 in my 68. the trans i got has a fixed output yoke from a long bed. I found a chart online that shows all the driveshaft lengths and part numbers for the long beds but not on the shortbeds. If i want to keep my trans tailshaft i need an expanding drive shaft. Does this list exist for shortbeds? or is the driveshaft im looking for just the rear section from a longbed. the truck is not in a position quite just yet to be taken off the stands and set at ride height to measure what length i need. Or is this just a case of "slip yoke tailshaft or custom driveshaft, no exceptions".
What size is the engine, what rear axle does it have?

Notice in the pic how FoMoCo measures driveshafts. Short bed is TYPE 4.

 
  #3  
Old 04-17-2018, 09:56 PM
koldham
koldham is offline
Freshman User
Thread Starter
Join Date: Mar 2016
Posts: 35
koldham is starting off with a positive reputation.
its a 360 v8, not sure what axle its got, it has a non removable diff cover and non flexomatic rear springs if that helps. ill look for a tag in the morning.
 
  #4  
Old 04-17-2018, 11:01 PM
70FE250's Avatar
70FE250
70FE250 is offline
Senior User
Join Date: Oct 2015
Location: Bismarck, ND
Posts: 420
70FE250 is starting off with a positive reputation.
Originally Posted by koldham View Post
its a 360 v8, not sure what axle its got, it has a non removable diff cover and non flexomatic rear springs if that helps. ill look for a tag in the morning.
that sounds like a 9 inch
 
  #5  
Old 04-18-2018, 04:37 PM
koldham
koldham is offline
Freshman User
Thread Starter
Join Date: Mar 2016
Posts: 35
koldham is starting off with a positive reputation.
that chart does not show u joint to u joint measurements?
 
  #6  
Old 04-20-2018, 07:48 PM
JEFFFAFA's Avatar
JEFFFAFA
JEFFFAFA is offline
Post Fiend
Join Date: Mar 2013
Location: Phoenix, Az.
Posts: 12,669
JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.
I don't think you're going to find any listing or chart. I don't think Ford built a two piece driveshaft for a short bed. Once the center is mounted up to the truck via a carrier bearing the driveshaft angle of the rear shaft would be too steep. I think what you'll end up doing is having a local driveshaft company custom build you a driveshaft. I would suggest starting with a 1978 and newer Bronco rear driveshaft and have that driveshaft company re-tube it longer. Bronco driveshafts were two piece with a slip yoke. But didn't use a carrier bearing.
 
  #7  
Old 04-20-2018, 08:27 PM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist
Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 78,593
NumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputation
No short bed of any year came w/a two piece driveshaft.

Pic: Example of a two piece driveshaft for 1965/79 F100/350 with 8' bed. Pic from 1973/79 catalog, no pic like this in 1964/72 catalog.

 
  #8  
Old 04-20-2018, 08:38 PM
mrpotatohead
mrpotatohead is offline
Posting Guru
Join Date: Apr 2006
Location: NAMPA, ID.
Posts: 1,153
mrpotatohead is gaining momentum as a positive member of FTE.
Driveshaft charts are some good reading.
 
  #9  
Old 04-20-2018, 08:54 PM
koldham
koldham is offline
Freshman User
Thread Starter
Join Date: Mar 2016
Posts: 35
koldham is starting off with a positive reputation.
so basically i need a slip yoke tailshaft for my trans as there is no expanding driveshaft for a shortbed?
 
  #10  
Old 04-20-2018, 09:41 PM
NumberDummy's Avatar
NumberDummy
NumberDummy is offline
Ford Parts Specialist
Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 78,593
NumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputation
Originally Posted by JEFFFAFA View Post
I don't think you're going to find any listing or chart. I don't think Ford built a two piece driveshaft for a short bed. Once the center is mounted up to the truck via a carrier bearing the driveshaft angle of the rear shaft would be too steep. I think what you'll end up doing is having a local driveshaft company custom build you a driveshaft.

I would suggest starting with a 1978 and newer Bronco rear driveshaft and have that driveshaft company re-tube it longer. Bronco driveshafts were two piece with a slip yoke. But didn't use a carrier bearing.
Dueling parts guys.

Lower pic: Where is the two piece driveshaft? No see um.

 
  #11  
Old 04-28-2018, 12:01 PM
JEFFFAFA's Avatar
JEFFFAFA
JEFFFAFA is offline
Post Fiend
Join Date: Mar 2013
Location: Phoenix, Az.
Posts: 12,669
JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.JEFFFAFA has a spectacular reputation.
Originally Posted by NumberDummy View Post
Dueling parts guys.

Lower pic: Where is the two piece driveshaft? No see um.

I was referencing 4602 and 4841. But maybe instead of me calling it a 2 piece shaft I should have called it "expandable" as the OP did above.
PO, see what I mean about using a Bronco driveshaft?
 
  #12  
Old 04-28-2018, 11:06 PM
mrpotatohead
mrpotatohead is offline
Posting Guru
Join Date: Apr 2006
Location: NAMPA, ID.
Posts: 1,153
mrpotatohead is gaining momentum as a positive member of FTE.
  #13  
Old 04-30-2018, 06:29 PM
HIO Silver's Avatar
HIO Silver
HIO Silver is offline
Post Fiend
Join Date: Dec 2009
Location: NorCal
Posts: 20,469
HIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud ofHIO Silver has much to be proud of
Did trucks using an NP435 ever have a slip yoke output? I recall them only having a fixed yoke.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
351coupe
1973 - 1979 F-100 & Larger F-Series Trucks
2
02-04-2014 09:57 PM
Burntrubber87
1987 - 1996 F150 & Larger F-Series Trucks
0
04-04-2010 11:39 PM
overlandexpress
1961 - 1966 F-100 & Larger F-Series Trucks
0
10-25-2009 01:12 AM
Slow
Clutch, Transmission, Differential, Axle & Transfer Case
10
09-29-2005 01:06 PM
dino360
Clutch, Transmission, Differential, Axle & Transfer Case
0
10-26-2004 11:09 PM


Thread Tools
Search this Thread
Quick Reply: np435 + shortbed. driveshaft?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.