U-bolt through the top with a plate or two (whatever is not used as shims). Under radiator support is the rubber isolation pad and whatever shims are needed for alignment of the front sheet metal. Then through frame cross member with a spring, large washer and Marsden nut on each down leg of the u-bolt put on from the bottom. You want to lightly compress the spring. Not too light but leave some room for things to move when the truck flexes going down the road. The Marsden nuts are important as they are a lock nut which is hard to use a lock washer against a spring.
1947.2 GMC 1/2T SWB panel 1947.2 GMC 1/2T long bed 1948 GMC 1/2T short bed
