I'm swapping to an 80e and the only problem I've run into is what I need to do with the cooler lines. I ordered a 40,000 gvwr tru-cool unit. Do I need to replace / modify one of my cooler lines. If one needs to be replaced then which part number do I need? I found a pair of part numbers for the swap but from what I understand only 1 of them needs to be replaced.

 

I would just replace both the lines with some stainless -6 line. Flows alot better and you won't have to worry about the lines rubbing on the header like alot of them do.

 

What fittings do I need to make it work?

 

i just cut the lines and flared near the 90's right off the trans, just ran high heat hose. works alot better than trying to bend the hard lines

 

The front cooler line apparent goes right into the front cooler fitting.

For the rear line, I will be using a 2500 Suburban cooler line...thanks to Supersub. It's a direct bolt in to the stock 1500 cooler and the rear cooler plug on the 80e. All hard line. I'm not a fan of rubber hose personally.

 

do you have a part number for just the rear one? I have 2 part numbers but don't know which is which.