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OD/locking trans options for 1971 413 #2889319
02/16/21 06:06 PM
02/16/21 06:06 PM
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Ray S Offline OP
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I have a 1971 Dodge M375 RV with 413 engine (6 bolt crank), 10k GAVW, and would like to upgrade to a locking OD trans rather than ever rebuild the A727 which has 70k miles (but runs OK).
What options are there?
I found 3 options for 47RH:
~$4.5k https://www.coperacingtrans.com/?product=crt-518-hd-1-transmission
~$4.5k https://transmissioncenter.net/product-category/dodge/?product-category=level-2-47re-47rh-618,level-2-48re-dodge
~$3k https://www.transdepot.net/46RH-47RH-48RH-Dodge-Stage-1-Transmission-89-95_p_138.html


A 700R4 is probably too weak to last, but Wilcap has an adapter
The ZF Dodge transmissions don't have RB 413/440 adapters (a real pity)
AFAIK there are no Allison adapters

Re: OD/locking trans options for 1971 413 [Re: Ray S] #2889358
02/16/21 07:28 PM
02/16/21 07:28 PM
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fredericksburg,va
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cudaman1969 Offline
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A friend put the Chevy 8 speed in his 68 Dart, with electronics was over 7 grand. I would look into the 727 and the over drive that bolts to the tail shaft (can’t think of the company). Also have to redo the rear trans mount to even do the factory od trans. Copes trans with adapter might be the best, they all will need an adapter. I’m looking to do same in my 79 truck, I have a 92 trans that I’m going to cut off the front part and weld the big block piece to it. like the factory SHOULD have done. I’m measuring now to see where the two cases match up. Even thought of using the Ultra Bell bolt on housing.(cut trans housing off and then it bolts to the front pump)
Look up PATC they have the wiring kit you need.

Last edited by cudaman1969; 02/16/21 07:31 PM.
Re: OD/locking trans options for 1971 413 [Re: cudaman1969] #2889366
02/16/21 07:41 PM
02/16/21 07:41 PM
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Laveen, Arizona
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I have an adapter kit for putting a small black transmission behind a bit block up for sale. Pm me if interested. It's the plate, flexplate, flexplate spacer, and bolts.


1949 International KB-2 "Mater" - 302/T5

1968 Dodge Dart GTS "The Drat" - 340/727

2006 Dodge Magnum R/T - Hemi

2016 Dodge Durango Limited - 3.6
Re: OD/locking trans options for 1971 413 [Re: cudaman1969] #2889406
02/16/21 08:52 PM
02/16/21 08:52 PM
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Ray S Offline OP
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John at https://www.coperacingtrans.com says he loans an alignment tool he made to get the adapter perfectly dialed into the crank centerline, using a dial indicator, made out of an old SB bell.
It seems that perfect alignment is not a given, so his plate pins are eccentric.

Re: OD/locking trans options for 1971 413 [Re: Ray S] #2889504
02/17/21 04:06 AM
02/17/21 04:06 AM
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Atlanta, GA
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mgoblue9798 Offline
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I have a new to me 1973 travco with the m375 chassis. I had planned to run a 413, but mine came with a 318 and a good 413 core has proved hard to find.
I will be building a 518 to go behind a 408 stroker. I don't know why it would need a 4k trans to live behind it. The 518's will live just fine without having to spend that kind of money. I am looking to see if someone builds a lock up torque converter with a heavy duty clutch though.

Re: OD/locking trans options for 1971 413 [Re: mgoblue9798] #2889569
02/17/21 11:08 AM
02/17/21 11:08 AM
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Salem
Grizzly Offline
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Keep an eye on your local Craigslist or facebook marketplace for a 2wd Ram with a V10 automatic in it. You can get the whole truck for about a quarter of the price of the re-builds you listed.

Dump the 413 and put the V10 auto in your RV. You will be miles ahead.

If you still want to keep the 413, go to the autowrecker and they will do a search for you for a pre-1998 47rh. You will probably get one for under a thousand dollars and get a 30 day warranty.


Mo' Farts
Re: OD/locking trans options for 1971 413 [Re: Grizzly] #2889572
02/17/21 11:18 AM
02/17/21 11:18 AM
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Fort Worth, Texas
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Originally Posted by Grizzly
Keep an eye on your local Craigslist or facebook marketplace for a 2wd Ram with a V10 automatic in it. You can get the whole truck for about a quarter of the price of the re-builds you listed.

Dump the 413 and put the V10 auto in your RV. You will be miles ahead.

If you still want to keep the 413, go to the autowrecker and they will do a search for you for a pre-1998 47rh. You will probably get one for under a thousand dollars and get a 30 day warranty.


1995 was last year for RH, 1996 started the RE's.


'68 Fury Convertible
'69 300 Convertible
'93 Ramcharger 5.7 Hemi
'93 Ramcharger 318 sold
'01 3500 4x4 Cummins 6 speed sold
'13 300 S sold
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: OD/locking trans options for 1971 413 [Re: mgoblue9798] #2889824
02/17/21 09:57 PM
02/17/21 09:57 PM
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Doc Fiberglass Offline
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Originally Posted by mgoblue9798
I have a new to me 1973 travco with the m375 chassis. I had planned to run a 413, but mine came with a 318 and a good 413 core has proved hard to find.
I will be building a 518 to go behind a 408 stroker. I don't know why it would need a 4k trans to live behind it. The 518's will live just fine without having to spend that kind of money. I am looking to see if someone builds a lock up torque converter with a heavy duty clutch though.


You had two 413 freebies about a year ago tsk


cheap, nosy, obnoxious? ...moi ?? ... just call it a HOBBY !!
Re: OD/locking trans options for 1971 413 [Re: Grizzly] #2889827
02/17/21 09:59 PM
02/17/21 09:59 PM
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Doc Fiberglass Offline
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Originally Posted by Grizzly
Keep an eye on your local Craigslist or facebook marketplace for a 2wd Ram with a V10 automatic in it. You can get the whole truck for about a quarter of the price of the re-builds you listed.

Dump the 413 and put the V10 auto in your RV. You will be miles ahead.

If you still want to keep the 413, go to the autowrecker and they will do a search for you for a pre-1998 47rh. You will probably get one for under a thousand dollars and get a 30 day warranty.





Grizzzzzz ...a v10 ?.... whatchoobeensmokin ? smoke xmaseek


cheap, nosy, obnoxious? ...moi ?? ... just call it a HOBBY !!
Re: OD/locking trans options for 1971 413 [Re: Doc Fiberglass] #2889851
02/17/21 10:35 PM
02/17/21 10:35 PM
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Salem
Grizzly Offline
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Factory computer engine management, 450 ft/lbs torque, overdrive, dead reliable, cheap, turn the key and go anywhere RV?

Other than lack of fabrication skills, not really sure why anyone would question a V10 swap, Doc?

I have a Ford V10 in a triple slide 30 foot RV and there is not one single time where I thought a carbureted big block anything would be better.


Mo' Farts
Re: OD/locking trans options for 1971 413 [Re: Grizzly] #2889861
02/17/21 10:48 PM
02/17/21 10:48 PM
Joined: Nov 2003
Posts: 6,603
Fort Worth, Texas
3hundred Online work
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Ignoring the parts situation I think the V10 swap is an awesome upgrade. The '96 and newer V10's got sequential port injection and a slight HP bump if my memory isn't falling apart.


'68 Fury Convertible
'69 300 Convertible
'93 Ramcharger 5.7 Hemi
'93 Ramcharger 318 sold
'01 3500 4x4 Cummins 6 speed sold
'13 300 S sold
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: OD/locking trans options for 1971 413 [Re: Grizzly] #2889903
02/18/21 01:34 AM
02/18/21 01:34 AM
Joined: Feb 2021
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PINE VALLEY
Ray S Offline OP
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Originally Posted by Grizzly
Keep an eye on your local Craigslist or facebook marketplace for a 2wd Ram with a V10 automatic in it. You can get the whole truck for about a quarter of the price of the re-builds you listed.

Dump the 413 and put the V10 auto in your RV. You will be miles ahead.

If you still want to keep the 413, go to the autowrecker and they will do a search for you for a pre-1998 47rh. You will probably get one for under a thousand dollars and get a 30 day warranty.



If I had the time for a full swap with computers, mounts, gas tank pump and all I agree the V10 is a good motor.
I can put the 47RH in in an afternoon, and the 413 purrs and pulls great - 71 was the highest HP year.
My 97 B3500 has the 47RE with all upgrades and over 120k miles now on the rebuild. 200k on the OEM engine.
I do intend to check the yards nearby as I want some 90s Dodge captains chairs.

Re: OD/locking trans options for 1971 413 [Re: Ray S] #2889904
02/18/21 01:40 AM
02/18/21 01:40 AM
Joined: Nov 2003
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Fort Worth, Texas
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Originally Posted by Ray S
I do intend to check the yards nearby as I want some 90s Dodge captains chairs.


Good luck with the seats, they've been scarce forever. Don't forget to check the vans, same seats.


'68 Fury Convertible
'69 300 Convertible
'93 Ramcharger 5.7 Hemi
'93 Ramcharger 318 sold
'01 3500 4x4 Cummins 6 speed sold
'13 300 S sold
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: OD/locking trans options for 1971 413 [Re: Ray S] #2889961
02/18/21 10:39 AM
02/18/21 10:39 AM
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Quote
AFAIK there are no Allison adapters


There are but good luck finding one. Industrial applications such as street sweepers could be a source.

Re: OD/locking trans options for 1971 413 [Re: NITROUSN] #2889966
02/18/21 10:48 AM
02/18/21 10:48 AM
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Fort Worth, Texas
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Originally Posted by NITROUSN
Quote
AFAIK there are no Allison adapters


There are but good luck finding one. Industrial applications such as street sweepers could be a source.


IF you can find one of the FL series (FL50 ~ FL80, I think?) Freightliners equipped with an Allison and 360 or V10 you'd have one. BIG IF, damned few built, let alone with the $12,000 optional Allison.


'68 Fury Convertible
'69 300 Convertible
'93 Ramcharger 5.7 Hemi
'93 Ramcharger 318 sold
'01 3500 4x4 Cummins 6 speed sold
'13 300 S sold
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: OD/locking trans options for 1971 413 [Re: 3hundred] #2890001
02/18/21 11:36 AM
02/18/21 11:36 AM
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Ray S Offline OP
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Originally Posted by 3hundred
Originally Posted by Ray S
I do intend to check the yards nearby as I want some 90s Dodge captains chairs.


Good luck with the seats, they've been scarce forever. Don't forget to check the vans, same seats.


I love the seats in my 97 B3500, I've sat for nearly 10 hours at a time without pain across the West.
Sad that so many others do not take care of their upholstery.

Re: OD/locking trans options for 1971 413 [Re: NITROUSN] #2890004
02/18/21 11:40 AM
02/18/21 11:40 AM
Joined: Feb 2021
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PINE VALLEY
Ray S Offline OP
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Originally Posted by NITROUSN
Quote
AFAIK there are no Allison adapters


There are but good luck finding one. Industrial applications such as street sweepers could be a source.


Yeah I just don't see the Allisson happening.
A computer and adapter for the ZF8HP, OTOH, would be awesome. My sister's 1500RAM has the paddle shifters and 8 speeds is almost seamless shifting. Higher tow rating too.

EDIT
I did have a link for a user who stuck one from a RAM into a 8 second Chevelle https://www.pro-touring.com/archive/index.php/t-123590.html

https://www.forbbodiesonly.com/moparfor ... ion.17287/
https://www.allpar.com/mopar/transmissi ... lites.html
https://www.pirate4x4.com/forum/dodge/9 ... 727-a.html
https://ramchargercentral.com/drivetrai ... y-id-info/

Last edited by Ray S; 02/18/21 11:53 AM.
Re: OD/locking trans options for 1971 413 [Re: Ray S] #2890013
02/18/21 12:10 PM
02/18/21 12:10 PM
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roadrunninMark Offline
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Ray, the computer, or controller, is available for the 8 speed. Sound German Automotive makes them. I've been thinking about putting an 8 speed in my barracuda, behind a hopped up small block. I just don't want to cut up the trans tunnel to get it in there. I know it will bolt up but not sure what is needed to have the proper connection between the TQ and the flex plate.

Re: OD/locking trans options for 1971 413 [Re: roadrunninMark] #2890166
02/18/21 04:57 PM
02/18/21 04:57 PM
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Downtown Roebuck Ont
Twostick Offline
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GearVendors with a yoke input and output. Hang it in place of the carrier bearing and shorten one drive shaft. You can probably find a used one for $1K or less and have it freshened up and installed for half of the cost of a 518/618/46RH conversion and swap.

Kevin

Re: OD/locking trans options for 1971 413 [Re: roadrunninMark] #2890173
02/18/21 05:08 PM
02/18/21 05:08 PM
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Ray S Offline OP
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Originally Posted by roadrunninMark
Ray, the computer, or controller, is available for the 8 speed. Sound German Automotive makes them. I've been thinking about putting an 8 speed in my barracuda, behind a hopped up small block. I just don't want to cut up the trans tunnel to get it in there. I know it will bolt up but not sure what is needed to have the proper connection between the TQ and the flex plate.


There are 2 that make TCMs for it
https://www.soundgermanautomotive.com/pcs/
https://htg-tuning.com/

but no physical adapters to the RB blocks.
You'd think someone could; if they have the CAD for the 440, and the CAD for the ZF end, why not?

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