47-59 1950 3600/S-10-LS swap

[joedoh]

Originally Posted by scott123

Also I am trying to surgically remove the running boards without completely ruining them. Hopefully I can save both of them with the body saw.

i find the best way to remove the running boards when the square hardware is stuck, is to plunge cut with a cut off wheel in a battery powered grinder (a plug in will have to much torque and is much more dangerous) straight up from the bottom through the middle of the bolt, cutting the square nut in half. then you just split the nut with a screwdriver and the boards lift off, you can then take out the fastener (1/4-20 carriage bolt) and replace it easily.