Author Topic: Auto tranny with 4spd or overdrive?  (Read 898 times)

Offline ajantics

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Auto tranny with 4spd or overdrive?
« on: January 04, 2010 - 09:31:19 PM »
Hi everyone :wave: So I got my suspension parts together and have the motor on its way but I am still having a hard time trying to figure out what to do with my tranny. :dunno: :clueless: I plan on really driving the car that is why I would like the 4th gear or an overdrive so that I don't kill my savings account just to drive my cuda. I am putting in a small block stroker and I would really like to keep my 727 but have an overdrive gear.

I am really liking the idea of the Gear vendors unit but I haven't found enough positive feedback on this site about them.

I have thought about getting the Keisler chevy auto but I am scared since they filled chapter 11 that I won't have any support if anything goes wrong with the tranny. I don't know if it is true that they filled chapter 11 or if its just a rumor?

I am aware of the A518 swap but I am not mechanically there to do this swap myself.  I need something more of a bolt solution then a custom fabricated piece.

Is there any other options out there?

Ideas or opinions would be greatly appreciated!
70 Barracuda
73 'Cuda
2003 Dodge Ram 3/4ton
2009 G37s




Offline Chryco Psycho

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Re: Auto tranny with 4spd or overdrive?
« Reply #1 on: January 04, 2010 - 09:37:33 PM »
The Gear Vendors is a great system & you do not have to cut the floor to fit it , it is indestructable as well but the Price is the only downside with it , the 518 mod requires floor surgury but can be made to work as well .

Challenger - You`ll wish You Hadn`t

Offline ajantics

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Re: Auto tranny with 4spd or overdrive?
« Reply #2 on: January 04, 2010 - 09:48:43 PM »
Thanks Chryco. With the Gear vendors unit do I have to get a custom drive shaft? The Gear vendors unit is half the price of the keisler tranny :faint:
70 Barracuda
73 'Cuda
2003 Dodge Ram 3/4ton
2009 G37s

Offline 500Stroker

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Re: Auto tranny with 4spd or overdrive?
« Reply #3 on: January 04, 2010 - 11:02:51 PM »
Your existing driveshaft will have to be shortened.  Hands down the best improvement I have made to my car 5 years ago.  Heres a current thread on Moparts about the GV.

http://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5709185&an=0&page=0#Post5709185

Offline ajantics

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Re: Auto tranny with 4spd or overdrive?
« Reply #4 on: January 05, 2010 - 12:38:07 AM »
Thanks for the link 500stroker. :thumbsup: Where did you install the gearvendors button?
70 Barracuda
73 'Cuda
2003 Dodge Ram 3/4ton
2009 G37s

Offline 500Stroker

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Re: Auto tranny with 4spd or overdrive?
« Reply #5 on: January 05, 2010 - 06:57:17 PM »
I started out with the dimmer switch that comes with the kit mounted on the floor above the other one.  Then my left foot stopped working so I had to go to a button on the center console below the shifter.  The auto/manual box is mounted on the dash under the radio.  The main control box is up high under the dash behind the gauges.

Offline tactransman

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Re: Auto tranny with 4spd or overdrive?
« Reply #6 on: January 06, 2010 - 08:08:22 AM »
The 518 would be the least amount of work to do on the install.
Terry-tactransman 
Torqueflite/Automatic Transmission Specialist
Union, Mo.
Give a man a fish and he eats for a day,teach him to fish and he eats for a lifetime.