serpentine belt

How can I tell if serpentine belt is motor mount vs. non motor mount. Jiffy lube quoted me two prices, $100 difference. I have a 96 GA.

when you need to remove the motor mount to replace the belt. Some older GA dont need the mount off. but if the mount comes off I'd say that was the one that cost more. A belt is only around $40, but there are more expensive belts. \,,/