What size are the threads of the cooler lines going into the radiator? I need to extend the lines out about 1.5" to get e-fans in and thought about adding a metal piece instead of splicing in rubber hose.

 

5/8-18 inverted flare

 

Curious as to why you need to extend the trans lines for efans, why and what kind of fans are you going to use?

 

Thanks Buddy!!!

I have a set of 08-09 Tahoe fans that I am putting on the H2. The oil lines pass about 3" from where the front edge of the fan will be. The lines cross the radiator diagonally. The e-fan is about 4" deep at that area.

 

Ahhh, gotcha

 

There is a line bracket that should attach to the shroud to hold those lines. Do the newer fan shrouds not have that provision?