Printable View
so i swapped a 6.0 into my 1999 gmc 1500 that had the 5.3 . its got the 4l60e in it now but its new hp pretty much blew 2nd gear out. so would it be a better idea to buy a built 4l60e? or get a 4l80e to swap into it?? and with the 4l80e swap can i run the transfer case thats on the 4l60? or what one do i need? and will i need anything else to do the swap??? the motor im running is about 450 hp. just wondering how to fix this the cheapest way i can but still be reliable.
id do a 4l80e bro..i broke 2 60e's and on both the 2nd gear was gone lol .not sure if u can use same transfer case
Go with an 80e but swap to awd that'd be way better! Check out the stickie about swapping to awd he used an 80e. Sick setup for sure.
I'm thinking a built 4l80, my uncle has one in his 99 shortbed, and it is flawless with some tuning.
80e all the way.
Even a stock 80
yeah im going to go with a 80. does anyone know if i need a transfercase or will the one off the 4l60e work??
Im in a pretty similar swap and the flywheels on 6.0 and 5.3 are different? How did you get past this with the 4l60e? Anything helps, thanksQuote:
Originally Posted by kbomhower
Matt
If you have a 99-2000 6L you're going to have difficulties putting a 60e behind it due to the long crank snout.
i just got sick of trying to find custom parts and got a 4l80e. wasnt a whole lot of work and from what everyone says its well worth it in the end. im almost done with everything now and it only took a week of working on it here and there to get it done.
I take it your transfer case went together with the 80e fine?
I think you will have to change the output shaft in the 80 to make it workQuote:
Originally Posted by kbomhower
yeah i went and got a 32 spline input shaft for the np 246. u can find em at most tranny shops online. i got my at drivetrain.com