4L80 Conversion

Drivetrain discussion including Transmission, Differential, Driveshaft, and related items.
Post Reply
Joshua27
Posts: 1
Joined: Mon Aug 19, 2019 10:14 pm

4L80 Conversion

Post by Joshua27 » Sat Nov 30, 2019 7:35 pm

Has anyone done a 4L80 conversion on a PPV to date? I am in the process of doing it right now. Just have some questions on driveshaft if anyone has.

Ilikemtb999
Posts: 184
Joined: Thu Feb 07, 2019 5:49 am

Re: 4L80 Conversion

Post by Ilikemtb999 » Sat Nov 30, 2019 8:50 pm

Just curious, why?

kevink
Posts: 400
Joined: Sun Aug 09, 2015 5:55 pm

Re: 4L80 Conversion

Post by kevink » Sun Dec 01, 2019 12:13 am

Ilikemtb999 wrote:
Sat Nov 30, 2019 8:50 pm
Just curious, why?
It's a much stronger transmission, you can have a transbrake, the tuning is probably easier (I stay away from only the most basic 6L80 tuning), a lot of high powered don't need the crazy-low first gear ratio of the 6L80, and they're cheaper.
Last edited by kevink on Sun Dec 01, 2019 12:27 am, edited 1 time in total.
2011 9C3: 11.48 @118. World's fastest naturally aspirated Caprice PPV.

kevink
Posts: 400
Joined: Sun Aug 09, 2015 5:55 pm

Re: 4L80 Conversion

Post by kevink » Sun Dec 01, 2019 12:16 am

Joshua27 wrote:
Sat Nov 30, 2019 7:35 pm
Has anyone done a 4L80 conversion on a PPV to date? I am in the process of doing it right now. Just have some questions on driveshaft if anyone has.
I know plenty of G8 guys and SS guys have done it. Did you have to beat the tunnel or make any other permanent mods to make it fit?
2011 9C3: 11.48 @118. World's fastest naturally aspirated Caprice PPV.

Post Reply