[scrappydoo2k2]

@71CHEVYSHORTBED402 Did you ever get the rear bumper bracket snafu ever figured out? I'm in a similar situation (1970 leaf spring, LWB to SWB conversion, but looks exactly like yours except I have no mounting holes in the frame).

I ordered the same set of SWB leaf spring rear bumper brackets, but doesn't look like they make much sense at all, and I've come to the conclusion I think you did - that the regular brackets would work better with less modification. But before I start drilling and/or cutting, I'd like to know what solution you finally went with.