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T56 to 4L80e conversion, please read

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Old 10-15-2011, 02:32 PM
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Default T56 to 4L80e conversion, please read

I know its been worn out because I have dont much research on the matter. Basically I'm making the switch no matter what so I would like to get a run down and get some questions answered that I can't seem to get a straight answer on, even from the sponsors.

First of all, I'm pretty sure I can modify my M6 crossmember correct?

Secondly, I know I need a special flexplate, correct?

Third and most important and confusing is the wiring and tuning issue: My wish is to not have to re-wire or retune anything in the PCM, even though i can, just dont want to. I think Spearteck makes an adapter harness that keeps me from having to mess with that, but I could be could wrong. I wouldn't mind running an extrernal standalone controller to hopefully be able to change shift points, TC lockup, Etc. Not really wanting FMVB. Any info on this part of the swap woud be great since it seems to be the most confusing and hard to find info on. Any1 that can chime in, I'd really appreciate a call at 817-300-2906 and call anytime, literally. I work my dick in the dirt over 100+ hours around the clock in the oilfield, so if I don't answer, just text me or maybe leave me a voice message and I'll get back with you ASAP. I just really need to figure out what I need as far as wiring. I need it ready since I have litterally no spare time. Maybe around the holidays, but who knows. Gas industry goes non-stop.

So far I guess I need the trans, TC, special flexplate, wiring harness from T56 to 4l80(not sure)???, Trans controller if I can't reflash my PCM and still keep my tuning?

I already have the pedals, stock shifter pieces, and whatever else I'm forgetting.
THANKS A MILION to those who can help me out without spending a fortune. I'm not gonna drop 4-5K on this swap. Maybe 2-3K before I sell my many T56s and master cylinders. So if any1s intersted in a good T-56, lemme know.
Thanks again,
Wes
Old 10-15-2011, 09:43 PM
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Perhaps my build thread would be of some help to you.

https://ls1tech.com/forums/automatic...0e-cheapo.html
Old 10-18-2011, 07:26 PM
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Hey Wes,,, Talked to you on the phone,,
Ronnie
Old 10-19-2011, 12:33 PM
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Just wanted to throw this out here for you. I can get you a 4L80E conversion crossmember from BMR Suspension that will save you cutting up a perfectly good crossmember. I also keep in stock steel locking dipsticks for the 4L80E transmissions. Give me a call if you're interested. 225-673-3533

Thanks,
Steve
Old 10-21-2011, 01:55 AM
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Thanks Steve. I'll probably be hitting you up for some stuff soon. I need a crossmember and Madman torque arm. Do yall sell the combination together for the 4l80e swap? Right now I have an old Spohn and the crossmember will not work, as far as I know with the 4l80...

Are the dipsticks you sell kinda long like I've heard about? I guess to clear the cowl for easy checking? Might go ahead and get some front double adjustable shocks as well.
Thanks
Old 10-21-2011, 01:57 AM
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and Thanks alot for calling me Ronnie, that was great info.
Old 10-21-2011, 07:57 AM
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Originally Posted by WMSuperSport
Thanks Steve. I'll probably be hitting you up for some stuff soon. I need a crossmember and Madman torque arm. Do yall sell the combination together for the 4l80e swap? Right now I have an old Spohn and the crossmember will not work, as far as I know with the 4l80...

Are the dipsticks you sell kinda long like I've heard about? I guess to clear the cowl for easy checking? Might go ahead and get some front double adjustable shocks as well.
Thanks
We don't have a kit, per say, but I can get everything you listed in one sweep. Our dipstick does clear the cowl for easy access and easy filling. Just give me a call when you're ready to order. I can get an estimate worked up for you or we can just start ordering parts

My number is 225-673-3533.



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