I'm in the middle of rebuilding the CTD from my 03 Dodge and would like to add extra cooling to the back of the block. I assume some of you on this forum have done this. I have the Cummins part for doing it on an 02 or older block but the HPCR block is different so it won't work. What do you suggest? The truck will be used for RV towing. Thanks in advance. Shadrach