The only guide pin you can use on the SM420 is on the left top. It has to be a stud
because there isn’t enough clearance for a screw head of any sort:
http://www.pbase.com/dennygraham/image/137554020 The right upper length is blocked by the front boss for the hand brake and you are limited
to a stud that is 1 7/8” long:
http://www.pbase.com/dennygraham/image/137554022Here are a couple of examples of how can remove or install the SM420. If you have
the room and a rental place near by or a friend that will loan you his, the crane is by
far the easiest as you can pull the seat cushion, swing open the doors and pull it out
or install it from the top:
http://www.pbase.com/dennygraham/sm420_rebuild&page=allThe boat wench worked just great when I couldn’t get the crane in the garage because
of four foot of snow blocking the path from the barn to the garage. With that I lowered
it out the bottom onto a creeper and rolled it out from under the truck:
http://www.pbase.com/dennygraham/transmissions&page=all Denny Graham
Sandwich, IL
