Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: SPWC]
#2264412
03/06/17 05:48 PM
03/06/17 05:48 PM
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Joined: Dec 2009
Posts: 20,679 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,679
in a cattle trailer down by th...
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You are going to need a driveshaft from a 108" wheel base van with a 904 and an 8.25, or have one made.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: SPWC]
#2264455
03/06/17 07:02 PM
03/06/17 07:02 PM
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Joined: Jan 2003
Posts: 10,651 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,651
Freeport IL USA
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OK, its question time. Is the 727 a standard length? Dodge made shorter 727s for some trucks and vans. Do you have the 904 handy?
You need to measure the length of both transmissions from the block surface of the bell to the rear seal mounting lip and compare the measurements. I thought a standard 727 was 3" longer then the standard 904.
Whatever the difference is, you need a driveshaft that much longer then the one you have, u-joint center to u-joint center, with the 904 front yoke.
Mopar made a lot of different combinations of trans/rear end/wheel base differences, so there are a lot of driveshaft lengths to choose from. I suspect there were several cars/truck combinations with the driveshaft length you need.
There are very few yards with a lot of old Mopars laying in them, but may still have a pile of driveshafts laying around. It might be much easier to locate av particular driveshaft length then a drive shaft from a particular car, truck, wheelbase, trans & rear end combo. At least it would be here. I have my own driveshaft collection, all I can tell you is they came out of Mopars, a length and u-joint size I can measure. Gene
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: rustbuckett68]
#2264955
03/07/17 04:04 PM
03/07/17 04:04 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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Is there the adapter between the trans and engine? Usually about 1"? The adapter was only used prior to '69, in '69 the /6 got its own dedicated 727 case. The 904 is 3.8" shorter than the long-shaft 727.
The INTERNET, the MISinformation superhighway
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: SPWC]
#2266236
03/09/17 03:44 PM
03/09/17 03:44 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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A '72 truck 727 for the /6 would have one of these numbers:
3496937, 3496941 or 3633552. The 937 is most likely in a van.
The INTERNET, the MISinformation superhighway
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: Cooter]
#2266527
03/10/17 12:43 AM
03/10/17 12:43 AM
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Joined: Nov 2003
Posts: 1,882 Pittsburgh,PA
RTSrunner
top fuel
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top fuel
Joined: Nov 2003
Posts: 1,882
Pittsburgh,PA
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Pretty sure there is a 4" difference between the two. The Yoke is also different between the 727 and 904 based transmissions. Having to change this may negate any savings with the free trans,plus it may not be good either.THe van transmissions are as noted sometimes shorter and also have a hole in the bellhousing for checking ignition timing(The torque converter is marked).
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: SPWC]
#2266855
03/10/17 03:45 PM
03/10/17 03:45 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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Numbers im reading are PK3640081 4081 6764 That's a '73 model year truck 727 built on September 29, 1972.
The INTERNET, the MISinformation superhighway
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Re: 72 Dodge Tradesman Slant 6 Trans Swap question
[Re: John_Kunkel]
#2268256
03/12/17 09:00 PM
03/12/17 09:00 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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Numbers im reading are PK3640081 4081 6764 That's a '73 model year truck 727 built on September 29, 1972. If that's a slant 6 trans you have a winner. I was surprised to find a slant six 727 in my 78 pick up many years ago. It's still sitting in the shed. My step son rebuilt it in trade school. To bad your so far away as I have no use for it at the moment...
I have mechanical Aptitude. I can screw up anything.
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