there is some info here http://www.neufamily.org/4l80e/4l80swap.html

 

Maybe some of us that are doing the 80 into a non-6.0 2wd could provide some tips/pics to add to that site.

 

The 5.3 flex-plate has a curve to it. The outside edge is beveled beack towards the engine if I remember right. The 6 flex plate is flate with a spacer on the crank side of it.

Scream ... measure it before you get the driveshaft shortened. The trans are the exact same length. I got a new trans yoke put on my driveshaft and test fit it. The guy that did the yoke said there is about 3/4 of an inch of play there, mine came back out of the trans about an inch and a half, meaning I was passed my 3/4 inch play mark. He says it's ok though, so I will run it like it is. I originally took it in to him to have him lengthen it up a little, but he told me that it would be OK. I feel like he was really being honest since he could have gotten more of my money for doing the work but told me that it wasn't needed.

 

How much would a complete swap cost?

 

Ok I have my 5.3/4l60 set up in the truck. Since my 422 is a 6.0 block why cant I just bolt a 4l80 up to it and go. So besides a TC and a 6.0 flexplate what else do I need? different cooler lines?

 

Man I just loked at kev's page. Um I think I am in trouble

 

10-4!

 

So who besides kev and blown has done this them selves? Or can I have my tranny guy call one of you so he can get the info if he has any questions

 

The hardest part is locating the used parts and getting the crossmember fixed for the further back mounting point.

You should plan to spend about 2000-3000 if you can get the tranny for about 1200. This includes a new torque converter.

Red, the bellhousing bolt pattern is the same. The only reason it wouldn't bolt up is because of the flex-plate, even then, it will, but you really need to have the right flex-plate.

I think I am going to look at some lines ... I haven't gotten them. I was just going to extend them out, but I don't like how close they are to the header.