Best Trans For o.d.

Author Topic: Best Trans For o.d.  (Read 938 times)

Offline gafletch

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Best Trans For o.d.
« on: June 19, 2013 - 02:47:27 AM »
I've gotten a lot of insights reading posts on the subject of overdrive options. I understand how expensive aftermarket trannys can cost. Are there ANY bolt on options that work? I read about a GM trans but don't know which one. Would a Ram trans work? :clueless:




Offline ChallengerHK

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Re: Best Trans For o.d.
« Reply #1 on: June 19, 2013 - 03:09:46 AM »
Are you looking for manual or automatic?


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Offline 72cudamaan

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Re: Best Trans For o.d.
« Reply #2 on: June 20, 2013 - 05:46:46 PM »
I'm interested as well so for the sake of argument let's say automatic.
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline Chryco Psycho

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Re: Best Trans For o.d.
« Reply #3 on: June 21, 2013 - 07:34:17 AM »
Smal block or big block ? :dunno:
 the Only bolt on big block one is the Gear Vendors Unit , it replaces the tailshft on either the 727, 904 auto or 4 spd & only requires some minor floor massaging to fit
 The 518 is the next easiest , it will bolt to a small block but require floor surgery to fit inside the tunnel .
  The RFE 545 should bolt up as well but is much bigger in the tunnel .
 The Viper T56 can be bolted in as well with a special belhousing & major floor surgery .
 As for the GM options I have no clue , obviously you need a different belhousing or adapter plate to bolt them up , not sure how the Flex plate to converter works or how they deal with the starter
 
« Last Edit: June 21, 2013 - 08:20:44 AM by Chryco Psycho »

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Offline brads70

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Re: Best Trans For o.d.
« Reply #4 on: June 21, 2013 - 07:42:31 AM »
I have Keislers kit with a GM  4L60 You could piece it all together with aftermarket suppliers. Requires no cutting.
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
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Offline 72cudamaan

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Re: Best Trans For o.d.
« Reply #5 on: June 21, 2013 - 08:50:58 AM »
I have Keislers kit with a GM  4L60 You could piece it all together with aftermarket suppliers. Requires no cutting.

I think you have me and everyone else turned away from Keisler. No Thanks    :swear:
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline 72cudamaan

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Re: Best Trans For o.d.
« Reply #6 on: June 21, 2013 - 08:53:58 AM »
Smal block or big block ? :dunno:
 the Only bolt on big block one is the Gear Vendors Unit , it replaces the tailshft on either the 727, 904 auto or 4 spd & only requires some minor floor massaging to fit
 The 518 is the next easiest , it will bolt to a small block but require floor surgery to fit inside the tunnel .
  The RFE 545 should bolt up as well but is much bigger in the tunnel .
 The Viper T56 can be bolted in as well with a special belhousing & major floor surgery .
 As for the GM options I have no clue , obviously you need a different belhousing or adapter plate to bolt them up , not sure how the Flex plate to converter works or how they deal with the starter


I know that you can fit an Ultra Bell to the 518 to fit a BB, just wanted to see other options. Supposedly no floor surgery
is needed to fit the 518 in there. If I can find a core for cheap enough I may try it.
If I cant fix it, it's broke
 
Andy  (phukker whither)

Offline Chryco Psycho

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Re: Best Trans For o.d.
« Reply #7 on: June 21, 2013 - 09:33:49 AM »
As Brad said you can do the GM 4L60 swap without using keisler .

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Offline rockymopar

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Re: Best Trans For o.d.
« Reply #8 on: June 21, 2013 - 11:29:08 AM »
a518s require NO floor surgery. You have to trim a couple of unused bosses and a cooling fin of some kind on the tailshaft. 5 minutes with a sawsall. If you go a518, you need a pre 1996 model as later ones are computer controlled. There are plenty of good threads here detailing the swap. I was able to put mine in the car for less than a third of the price of the keisler automatic kit   

Offline 360FISH

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Re: Best Trans For o.d.
« Reply #9 on: June 27, 2013 - 04:18:38 PM »
Here is the write-up I did on the 518 swap.  Works great.  No cutting the car at all.   EASY modification needed to the tranny case.

If I can do it... anyone can.   seriously...

http://www.cuda-challenger.com/cc/index.php?topic=84774.msg847870#msg847870

I love it and drive the heck out of it.  No issues.

Alan
1973 ‘Cuda   Semi-Pro Touring
360 SB - 518/OD auto tranny - FAST EZ EFI - Edelbrock Fuel sump - HHR fan
Hella H4 headlights on relays - 97 Dodge Avenger seats - Chin spoiler - Bumpers pulled in to ’72 offset

Build: http://www.cuda-challenger.com/cc/index.php?topic=74674.0