How do you measure? Overall outside or just the core? Sorry i have done the search and only found that i need a 34" radiator for the 05 e-fans.. Overall i measure 34" but i also read the 5.3 come with the 27 " not sure what i have......Thanks

 

Both can fit.The back area holds the 27 if you look forward there are two notches farther in that hold the 34"
Or i'm just wrong and this info is useless to you.Ethier way.....

 

Forgot to add i want to use 05 e-fans.

 

You do need the the 34" radiator for the 05 fans to work. You measure the core area of the radiator.

 

Thanks search goes on....