I am trying to finish up my LA to Magnum 360 swap on my old 86 W250 and I have run into the most asinine problem... I managed to get all the hoses and accessories hooked up but I cannot get the serpentine belt to work. It was a factory AC truck the motor came out of and my 86 didn't even have the option. The non-AC belt will not work it's too short. Have you ever come across this or know what belt will work? :banghead:

 

I found the solution myself after some digging... I will repost the link here so that anyone else looking to solve this problem might find it.

This is a link to the Napa autoparts webpage of the belt that will supposedly work for an AC 5.9l magnum that is just not running the AC. Apparently the AC and non AC brackets or pulleys must be different.

http://www.napaonline.com/Catalog/Ca...901_0387844934

 

All the brackets & pulleys are the same the Non A/C trucks use a idler pulley that replaces the compressor