I'll start......feel free to correct anything or call me an idiot

Transaxles
091 "6 Rib" - The toughest transaxle for woods riding. Identified by 6 ribs on the top and bottom.

002 "5 Rib" - Same internals as 3 rib 002. Identified by 5 ribs on the top and bottom.

002 "3 Rib" - Good combo for smaller motors. Identified by 3 ribs on the top and bottom.

I am going to nail 2 in one here.
IRS Suspension and the beetle car transaxle.
IRS Identified by an axle and cv setup like the one pictured and also pivot points on the torsion housing where the trailing arm bolts on. Car tranaxle identified by line down the center and round shape.

Swingaxle - I don't know much about these but there will be straight axle tubes running out to you wheels. Look in the picture.

Kingpin Frontend - The spindle has the King pin going through it, and the link pins connect the spindle to the arm.

Balljoint Frontend - The spindle connect directly to the arm via a balljoint. Usually have shock towers that look like dog ears haha.
