1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

couple of tranny swap questions

Old Dec 13, 2008 | 12:46 PM
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couple of tranny swap questions

found a good deal on a 47re from a v10. im under the impression that it will work just need to change a few things. does that sound right?
allso will any year 47re work with our truck ie 2003, 98
lastly the wiring of the tranny, essentially that is a computer controlled tranny but what exactly does the computer control? i have been trying to find a 47rh but the re seems more available.
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Old Dec 13, 2008 | 01:00 PM
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From: Central Mi
Originally Posted by bradshaw106
found a good deal on a 47re from a v10. im under the impression that it will work just need to change a few things. does that sound right?
allso will any year 47re work with our truck ie 2003, 98
lastly the wiring of the tranny, essentially that is a computer controlled tranny but what exactly does the computer control? i have been trying to find a 47rh but the re seems more available.
That's because a lot of 1gen-ers want the RH with the lock up...
The computer controls nearly everything on the RE -
won't work on ours without a LOT of work $$$$$
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Old Dec 13, 2008 | 02:44 PM
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From: Pottstown, PA
Originally Posted by unixcowboy
That's because a lot of 1gen-ers want the RH with the lock up...
The computer controls nearly everything on the RE -
won't work on ours without a LOT of work $$$$$
if i remember correctly you can used the tail section of the 727 to get rid of the electronic components. There is a member on here that did this (JD730) , look up his post and read what he did.

like unixcoboy said the RE is more work the then the RH would be.
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Old Dec 13, 2008 | 02:59 PM
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Plus the converter won't be any good out of the v10... It will work but not that well.. try to find the rh, much eaiser of a swap
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Old Dec 13, 2008 | 04:21 PM
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Originally Posted by archer39
if i remember correctly you can used the tail section of the 727 to get rid of the electronic components. There is a member on here that did this (JD730) something), look up his post and read what he did.

like unixcoboy said the RE is more work the then the RH would be.
Its the tail section off an A518, not the 727. You need the overdrive section with the hydraulic governor.

What I did is use the RE front case, parts and all. I took the RE overdrive and the 518 overdrive and used the clutch and gears out of the RE and put the output shaft from the 518 and put it all back together in the 518 tail housing.

When the front case is apart, the overdrive piston retainer has to be changed, the RE one does not have the fluid ports in it for the hydraulic governor. I used an aftermarket one. You'll also need a RH valve body.

Work wise its not much more if you can do your own trans work or if you have a good buddy that does it. The RE parts are much better than the A518 internals, front panet carrier is a 5 pinion steel compared to a 4 pinion aluminum, the rear band is a wider double wrap design.

Don't forget to find yourself the engine adapter plate.
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Old Dec 13, 2008 | 04:25 PM
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From: Belvidere, NJ
Originally Posted by unixcowboy
That's because a lot of 1gen-ers want the RH with the lock up...
The computer controls nearly everything on the RE -
won't work on ours without a LOT of work $$$$$
Actually if you wanted to run one with a manual valve body it wouldn't be that much work. Guys used to run them because no one made a billet output for the 47RH. Someone does now, so that is no longer a valid reason.
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Old Dec 13, 2008 | 05:12 PM
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From: Pottstown, PA
Originally Posted by JD730
Its the tail section off an A518, not the 727. You need the overdrive section with the hydraulic governor.
darn i was close (not really)
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Old Dec 13, 2008 | 05:34 PM
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i have also been seriously debating doing a 47rh swap. the thing is i dont want to pay 1000 for a good TC when i can pay 650 for my 727. i have to rebuild the 47rh but then i have to find a adapter plate, starter, shorten my driveline, make new trans mounts and rig up the wiring. i dont want to manualy control the lock up and OD. if im going to do that then ill just swap a stick in
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Old Dec 14, 2008 | 10:33 AM
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Adapter Plate?

Could some post a pic of this adapter plate. I'm looking at doing this swap and have no idea what it looks like.
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Old Dec 14, 2008 | 11:08 AM
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From: Richmond, MI
Well, it looks like like the one that you probably have now exept it is about 2" thick and the starter is up closer to the frame rail... Which has to be bent a little.. to make room for it...
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Old Dec 14, 2008 | 01:05 PM
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From: Central Mi
Originally Posted by NO_SPRK
i have also been seriously debating doing a 47rh swap. the thing is i dont want to pay 1000 for a good TC when i can pay 650 for my 727. i have to rebuild the 47rh but then i have to find a adapter plate, starter, shorten my driveline, make new trans mounts and rig up the wiring. i dont want to manualy control the lock up and OD. if im going to do that then ill just swap a stick in
Finding the adapter plate and starter is just knowing where to go...
I found mine at a place in Pa. - They have ALL KINDS of parts !!!
What's with the 'shorten the driveline' ? I keep hearing this, but I don't know why...Maybe it's because I've got a CC...
There was about 1 1/2" - 2" of my spline sticking out of the driveshaft rtight behind my carrier bearing....Even though I had to move the rear mount back the rest of the drivetrain lined up perfectly...The major problem I had was the bolts holding the rear trans mount came in from the TOP of the frame. Only choice was to loosen the body mounting bolts and lift the rear of the cab - way too much work - or torch a channel in the frame so the bolts would slide back...2nd choice was LOTS easier - just watch the cutting flame and don't go into the body
And the frame didn't have to be notched or anything - the starter bolted right in...

JD730 - - -
IF I had known that I'd have picked up an RE. They're supposed to be stronger than the RH anyway...
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