List your current mods if you have any other than tranny. If tranny is it then you need a rearend because it will
NOT last long. Trust be I know. I lost rear end, carrier, gears, drive shaft, yoke and even the new solid u joints.

Next get a really good tranny cooler to make that new tranny live longer.
Part numbers can be found here below. They were provided by Allen Nelson of Nelson Performance.
http://forum.ls1truck.com/index.php?showto...&hl=jj'
Pictures of this unit installed can be found on Nelsonperformance.com I have not uploaded mine to put file yet.
http://nelsonperformance.com/YellowTruck2.htm
Next get a performance tune. If you are one of the lucky folks from texas make an apointment with Dr. Nelson and let him tune your truck. When he does The sky will open and Angels from Heaven will appear and you will hear them sing. The pope is also likely to bless your truck.
After that stop by TRT and order a 408 which can be seen below.
http://forum.ls1truck.com/index.php?showtopic=11183
Then
and or Turbo
don't worry about paint and stuff you will too fast for the paint to stay on your truck.
Oh yeah the link below is great also.
http://www.gmhightechperformance.com/tech/...modified_truck/
OOOps forgot you had the tune sorry I am a dumba$$ sometimes.
[/b]