LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Swapping t56 out for a A4, what all needs to be done?

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Old 02-28-2012, 09:12 PM
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Default Swapping t56 out for a A4, what all needs to be done?

I have a 95 Trans Am m6 car that I sold the drivetrain out of so I could put the drivetrain from my camaro in it.. My camaro was a a4 car and I wanna keep the auto tranny in the T.A. so what all needs to be done? I know I gotta.throw a patch panel in it, and I think a neutral safety switch, somthing for the reverse lights and some kind of solenoid that when brakes are pressed I can take it out of park...Does anyone know where any of that stuff is? anything else that needs to be done? thanks!
Old 02-29-2012, 06:17 AM
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Probably the easiest thing to do is put in an aftermarket shifter. I run a Hurst Quarter Stick for the 700r4. It has both neutral safety and back up light switches built in to it. You also don't need a shift interlock (requiring the brake pedal to be pressed before you shift out of park). The Quarter Stick has a mechanical lock that holds it in Park and a reverse lock out lever as well.
Old 02-29-2012, 11:52 AM
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LS1 info but 99.9% the same
https://ls1tech.com/forums/automatic...sion-info.html
Old 02-29-2012, 03:10 PM
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Will he need a new PCM? My car was a A4 and a t56 was put in without changing computers. Now the speed is off by about 50% on the low side. I do 60.. speedo says about 30
Old 02-29-2012, 06:33 PM
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Originally Posted by GreenBlood55
Will he need a new PCM? My car was a A4 and a t56 was put in without changing computers. Now the speed is off by about 50% on the low side. I do 60.. speedo says about 30
Ya'll can keep your t56 pcm but need to have it reflashed for the a4 and whatever gears/tires you have.
Old 03-01-2012, 05:50 PM
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Need an A4 harness for 4l60E
Old 03-01-2012, 07:45 PM
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Originally Posted by GreenBlood55
Will he need a new PCM? My car was a A4 and a t56 was put in without changing computers. Now the speed is off by about 50% on the low side. I do 60.. speedo says about 30
The PCM will need to be reflashed for an auto transmission. Along with the speedo being off I bet you didn't have reverse lockout?
Old 03-01-2012, 09:35 PM
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I'm transplanting my drivetrain from another car and leaving the harness and pcm hooked up to it when I transfer..



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