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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

C4 Conversion What Is Needed?

  • Thread starter Thread starter mustangman9812
  • Start date Start date Sep 23, 2008

mustangman9812

10 Year Member
Jan 14, 2004
661
6
49
Mars Hill, NC
Sep 23, 2008
#1
  • Sep 23, 2008
  • #1
I am thinking about doing a C4 conversion on my mustang, what all is needed other than C4 Tranny & Bellhousing? What do I use for kickdown?



Thanks,
Matt
 

bhuff30

Founding Member
Dec 11, 2001
6,037
35
129
Olathe KS
Sep 24, 2008
#2
  • Sep 24, 2008
  • #2
Torque converter, flex plate, vacuum reference for the modulator valve. If your lucky, you won't have to get a custom torque converter and they may use an AOD flex plate to bolt it up. The driveshaft length should be close enough to the same that you can use the AOD driveshaft. The speedo gear should bolt right in with the C4 retainer.

You'll also have to do some re-wiring. The plug for the reverse lights will be different. Also, I would imagine the AOD has a neutral start switch somewhere that would have to be resolved before you can start the car.

Personally, I don't see why you'd want to get rid of the AOD. The AOD weighs a little more and sucks a little more power, but is just as cabable for holding the horsepower and has an overdrive gear! A C4 swap would be a lot of work and would leave your car feeling cheaply modified because it won't integrate well and won't have a factory feel.
 

04YELLOWGT

Active Member
Jun 29, 2005
1,135
2
39
Indiana
Sep 24, 2008
#3
  • Sep 24, 2008
  • #3
bhuff30 said:
Torque converter, flex plate, vacuum reference for the modulator valve. If your lucky, you won't have to get a custom torque converter and they may use an AOD flex plate to bolt it up. The driveshaft length should be close enough to the same that you can use the AOD driveshaft. The speedo gear should bolt right in with the C4 retainer.

You'll also have to do some re-wiring. The plug for the reverse lights will be different. Also, I would imagine the AOD has a neutral start switch somewhere that would have to be resolved before you can start the car.

Personally, I don't see why you'd want to get rid of the AOD. The AOD weighs a little more and sucks a little more power, but is just as cabable for holding the horsepower and has an overdrive gear! A C4 swap would be a lot of work and would leave your car feeling cheaply modified because it won't integrate well and won't have a factory feel.
Click to expand...

+1

I have a built 4R70W and it can hold more than enough power and still drives awesome.
 
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