prestinb Posted March 30, 2017 Report Share Posted March 30, 2017 Getting ready to do a 4L80E conversion in my 06 GMC Sierra 2WD Vortec Max with torsion bar front suspension. Currently have ARH headers and catless crossover pipes. Going to use Dtrfab81 tubular transmission crossover. Does the crossover exhaust pipe coming from the driver's side have to be changed at all to accommodate the 4L80E? Is the 4L80E pan in the same location? Any assistance would greatly be appreciated so I can start accounting for changes.prestinb Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted March 31, 2017 Report Share Posted March 31, 2017 My ARH headers and y pipe fit perfectly without any modification after my 80e swap. The truck was 4x4 though. Quote Link to comment Share on other sites More sharing options...
prestinb Posted March 31, 2017 Author Report Share Posted March 31, 2017 Thanks for the info...much appreciated. prestinb Quote Link to comment Share on other sites More sharing options...
1BAD2K Posted April 1, 2017 Report Share Posted April 1, 2017 Yeah no problem. Can't say 100% sure for 2wd, but I believe they are the same as far as exhaust clearance goes. Quote Link to comment Share on other sites More sharing options...
zachm89 Posted April 7, 2017 Report Share Posted April 7, 2017 My ARH y pipe hit my trans crossmember a little bit but all I had to do was grind a little bit off of one of the corners and it was fine. My crossmember was very boxy so with a tubular style crossmember or a modified factory crossmember it shouldnt be a problem at all. Quote Link to comment Share on other sites More sharing options...
prestinb Posted April 7, 2017 Author Report Share Posted April 7, 2017 Great thanks! prestinb Quote Link to comment Share on other sites More sharing options...
Downeast Johnny Posted April 7, 2017 Report Share Posted April 7, 2017 Great thanks! prestinb Keep us posted on how your conversion goes. Quote Link to comment Share on other sites More sharing options...
prestinb Posted April 7, 2017 Author Report Share Posted April 7, 2017 After throwing my truck up on the lift and looking everything over thoroughly, my main concern is the crossover pipe from the drivers side to the passenger side. With the new tubular transmission cross member, there will be much more roof available above. Basically, as long as the 4L80E transmission pan is not deeper, it should be a non issue. Getting new cross member parts powder coated and accumulating parts slowly as funds become available. prestinb Quote Link to comment Share on other sites More sharing options...
Downeast Johnny Posted April 7, 2017 Report Share Posted April 7, 2017 Good idea on the powder coat. Don't forget a tune in your parts budget. Quote Link to comment Share on other sites More sharing options...
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