Over Drive/Four Speed Without A Computer ?

Auggie56 · Dec 7, 2015

My last experience with any transmission, let alone mopar was the early eighties overdrives. So this part below, pretty greek to me. Anyone use this part yet, or is there something better out there, control wise ? Thinking about putting a late model 360 drive train in. Is there a modification, that's allows me to use those transmissions, without a computer ?

Thanks

http://www.ebay.com/itm/727-to-518-...1ddace2&pid=100033&rk=1&rkt=4&sd=151724991878

Budnicks · Dec 7, 2015

Lock up converter is what they're doing...

Chrysler had them in the {late 70's?} early/mid/late 80's,
sorry I don't use them to be specific still some older tranny shops have them,
know about them...
It's electronically controlled specific valve-body... No Computer needed
The valve body has a special bypass line & you need a lock up {low slip} converter....
a momentary switch can be used to activate & deactivate...

http://www.allpar.com/mopar/torqueflite.html

There's a good book on "Torqueflite A-727 Transmission Handbook"
by Carl Monroe HP Books-1399

318 Six Pack · Dec 7, 2015

This is probably way off base, and 10x the price, but I saw the boys at Roadkill install one of these and it is probably what I will be going with on my A904, one of these days well beyond the horizon.
https://www.gearvendors.com/hrdodge4sm.html

That link should go to the version for a manual transmission, they have others in the left side menu.

The setup you are talking about I remember reading of years ago (I think, if it is the same one) and it sounded interesting. Does Allpar.com have anything on it? Could try asking their transmission guys too.

Ryan.C · Dec 7, 2015

http://www.transmissioncenter.net/SwapInformation.htm

This site is a good start. I want to go this route myself with a C-body cruiser I have. The swap does not look all that difficult and it has been done quit a bit.

EDIT-

http://www.forabodiesonly.com/mopar/forumdisplay.php?f=131

After I read your post again I see you want to drop in the magnum engine and overdrive trans. The first link is for swapping a A518 OD trans behind your B/RB engine. The A-body guys have a thread for swapping in late model magnum drivetrains

Auggie56 · Dec 8, 2015

Thanks everyone...

Budnicks · Dec 9, 2015

Or do a JW Performance BB Bell-housing on a newer SB O/D trans,
or an adapter, I know someone make one I just don't remember who...
still need the electronic interface thou...

also SMR Transmissions 727 TF Shortie
http://smrtrans.tripod.com/smrtransmissionsintro/id32.html
that's a cool alternative too, {I haven't ever used one}

Gear Venders isn't a bad idea,
but pricey either way...

Jim Maras · Dec 11, 2015

I am using a 1994 518 with JW Performance bell housing adaptor behind a 440. The OD and lockup is each controlled with a electric solenoid that can be controlled manually or automated using pressure switches. Not cheap by the time you buy a stall/lockup and the adaptor but the OD/lockup is great.

Auggie56 · Dec 21, 2015

I know gas is cheep at the moment. And there comes a time, when the expense of an over drive, makes no economic sense. Thanks again for your input.

dickdale · Dec 22, 2015

I'm in the middle of this process. I've bought a A518 46RH and with a JW Performance Bellhousing and a few small parts (pressure switch, 2 relais and a adjustable vacuum swith, etc) you can make it work perfectly.

Page 8 /9 has some info for RH controller

http://www.cuda-challenger.com/cc/index.php?topic=84774.0

Darter6 · Dec 22, 2015

I like you have been toying with this idea for some time now.Every angle,mod,type,product out there I come up with a cost of the $4000 range to complete.I ask myself,"Do I drive it enough to justify ?"

Cranky · Dec 22, 2015

I thought the RH trans was hydraulic control with the OD being electric and could be turned off an on with just a simple switch?

dickdale · Dec 24, 2015

The A518 46RH is hydraulic an can be switched on with the parts I showed above. The A518 46RE is electronic and needs a $700-800 controller to make it work.

The simple parts above will cost me about €250,-...

Here's a partslist of someone that used it for his own build:

and instal pictures:

He used this setup for his small block challenger so he didn't had to chop the bellhousing and replace it with a JW Performance Ultrabell bellhousing...

Over Drive/Four Speed Without A Computer ?

Auggie56

FBBO Gold Member

Budnicks

Jackstand racer #1 & proud of it, Sir Posts A Lot

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318 Six Pack

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Ryan.C

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Auggie56

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Budnicks

Jackstand racer #1 & proud of it, Sir Posts A Lot

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Jim Maras

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Auggie56

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dickdale

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Darter6

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Cranky

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dickdale

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