Thank you 88. Two items on this truck left me scratching my head for years, one how to fit rear bumper brackets & the other a divorce for this operation. Didn't find either when I tore her down. Both issues seem to have been solved yesterday, I fitted the modified brackets, and picked up the choke & overhauled Rochester.
Leaf springs on a 2WD SWB is not a blessing. It's a rare frame, and they don't sell bumper brackets for these frames, despite claiming otherwise. Anyway, this is how I got "coil spring" type brackets to work. Luck has it I had the OEM outer brackets and found NOS inner brackets off a board member, for a "coil spring" frame.
I think a shim in the form of a washer is in order for this application, fit between the frame rail on outer brackets. It improves the alignment and should help avoid a disappointment when the brackets are torqued to the frame. Dummy bent this bumper when he installed it on the wrong brackets 30 years ago, what a disaster all the way around. Note to self, install the bumper side first
Curious if anyone can measure from the lower rear bed to the top of the bumper on their factory installed sport bumpers. I think this has to be close or nuts, any further mod pending installation of the bed. Thank you.