1955chevy33 Posted July 8, 2011 Report Share Posted July 8, 2011 I have a 1991 GMC 1 TON DUALLY 4X4 with a NEW 6.2 diesel and granny 4 speed tranny with 4:10 gears. As we all know the 6.2 is too underpowered for such a heavy truck and the granny 4 speed limits my top end and fuel mileage. I need a fellow racers professional company that does conversions to the CUMMINS ENGINES and a 5 or 6 speed tranny. Remember this is a 4x4 3500 series. I only have an original 65000 miles on the truck and I want to start using it to take my cars to the track with. I also want to give a fellow racer or race team the work . Please PM me with recommendations ! THANKS, Freddy Link to comment Share on other sites More sharing options...
1955chevy33 Posted July 8, 2011 Author Report Share Posted July 8, 2011 Any ideas,anyone ? How about anyone that converts trucks over to Duramax ? Link to comment Share on other sites More sharing options...
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