I need to replace the left side cv axle shaft on my 90 isuzu tooper. I am having trouble trying to figure out which size to order. To what I understand there is a 9/16 shaft with smooth cylindrical inboard joint and there's an 11/16 with a ribbed inboard joint. My trooper has the 'J' on the vin code. So if anyone could help me with which one to order I would appreciate it.
Thanks,
Kyle