Hey Folks!


I'm in the process of installing a timing chain on my 603, and during disassembly I decided I'm not going to put the AC compressor back, so the hunt was on to find the right belt size. I found a few posts that beat around the bush, but nothing definitive until I found it in the FSM as follows:





I've also come across a 3.5 at picknpull that I'll be pillaging for the reinforced timing cover, and smaller diameter water pump pulley, but this is where it gets tricky.


There should be 4 different belt lengths listed for 603s:
3.0s with all components
3.0s without AC
3.5s with all components
3.5s without AC


Instead they lump together all engine models without AC to the same belt size.


I maybe confused here, I'd like to hear your thoughts.