Whats all involved in swapping a 4l80e into my truck(03 RCSB)? I plan on going 6.0 soon and dont want the hassel of having to change the trans when i blow myne. I can get a awsome deal on an 80e but i dont no if the good out weighs the bad....? Will i need diff headers? will the tune work? driveshaft? Is a 4l80e really worth it..or will i be alright with a built 4l65e? I want a reliable street truck but be able to run like a low 11...

 

https://www.performancetrucks.net/fo...ght=4l80e+swap
https://www.performancetrucks.net/fo...ght=4l80e+swap
https://www.performancetrucks.net/fo...ght=4l80e+swap
https://www.performancetrucks.net/fo...ght=4l80e+swap

Headers will work. You'll need a different driveshaft, and a different tune segment for the 80E.

 

Sweet thanks for the links...I dont no if the swap seem worth it...with all the stuff ill need i think i can just get a FLT 4l65e for cheaper..

 

NOPE...without installation costs FLT 4L65 level 5 ~$4200+ with TC...4L80E level 4 from Speed Eng with conversion kit within $100 of that OR stock 4L80 with shift kit/TC & conversion kit $3600 delivered. Really all u need is the stocker...if ur gonna stick below 450rwhp just add a shift kit & vette servos to ur 4l60 and upgrade the tranny to the 4l80 once u move up in HPs. R/

 

When I priced the two out I came out to roughly the same $$ amount either way. I have a recommendation for a 4L80E builder if you go that way, PM me if you're interested.

 

you don't need a whole new driveshaft, just change out the yoke to fit the 80e. You don't need to spend the money for a built 80e, a stock one with a shift kit will handle more then most people will ever throw at it. The tune is a pretty simple fix, if you know someone near you with hptuners it is very easy to get it to work. The 80e is definetly worth it just for the piece of mind IMO.

 

What about the cross member? I herd you can use one from a 2500hd? Can i use my stock computer and just get w4m or someone like that to tune it for me? Where do i get the diffrent yoke?, and how much is it?

 

yeah, Im wanting to know more about the 2500 crossmember also. Anyone got any pics of where they used one or tried to use one?

 

Not sure about the 2500 crossmember. All i did was cut the mount off my stock crossmember, and turned it around so it was facing backward instead of forward. Then all that needs to be done is weld it on and slot the bolt hole for the tranny mount.

 

hmmm sounds easy enough what else did you have to get? i read somthing about transcooling lines?