1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Can i adapt a mustang tranny to my 12a?

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Old Jul 18, 2005 | 07:26 PM
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From: Orlando, FL
Can i adapt a mustang tranny to my 12a?

I have a 13b 5spd tranny.I am however looking to go automatic.What is involved to do this swap?I want to go with a c4 tranny and hi-stall t/c.This is for my starlet but the way.Thanks
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Old Jul 18, 2005 | 07:27 PM
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From: West Virginia
You must be crazy why the crap do u want an automatic, you get worse gas mileage, have less control of your car and are not nearly as fun!
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Old Jul 18, 2005 | 07:30 PM
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sure bustn you could for a price.
why not just get a OEM automatic
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Old Jul 18, 2005 | 08:11 PM
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From: Orlando, FL
I don't want an oem auto.i know their are alot more performance parts for the c4 and it's cheaper.I was hoping to do a 5-6k stall and a tranny brake.I already have the 13b spd with a bronze clutch and scatter shield,though.I just have to hang the pedal and slave cylinder.i was hoping for a auto for no missed shifts and faster shifting in the 1/4.Thanks
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Old Jul 18, 2005 | 08:31 PM
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From: chatsworth,Ca.
yes you can here is how the setup looks

a t5 tranny, adapter plate, bolts to the turbo 2 tranny or a rx3, or rx4 bellhousing.. you use a clutch disk with t5 splines and a mazda pressure plate, t/o brg..
i sell alot of these setups with excellent results



http://www.imagestation.com/picture/...b/f333df67.jpg


http://www.imagestation.com/picture/...d/f333df64.jpg
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Old Jul 18, 2005 | 08:36 PM
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From: chatsworth,Ca.
thats if you want to keep a stick

i have also adapted a c4 tranny to fit in the 7,... i use a mazda automatic bellhousing from 86-87-88 model, weld up the holes , and re-machine them to fit the c4 tranny... the torque converter is a custom unit that bolts up to the mazda flex plate with a custom pilot that fits into the back of the mazda crank.....

ill take some pics and post them up...

remember the auto robs power from the motor soooo the 4 speed would be better if your makin less than 500 hp
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