Don't know if this has been covered, but I was in need of cheap stock shocks for my 55 and didn't have any old ones to measure or really any way to cycle the suspension and shop around for something that might work, but in my search I found that these fit and work great, and cheap too...
Monroe 20818 (front)
Monroe 20751 (rear)
just tossing that out there
Monroe 20818 (front)
Monroe 20751 (rear)
just tossing that out there