1971 K20- project just get driveable!!

[swamp rat]

Originally Posted by Vintage Windmills

I was just typing quick on my smartphone, sorry about the rough formulas. I'll try to type up a quick document that outlines it.

You would be better off with a set of brackets like I've got since they bolt to a longer section of frame. The load on the frame is directly proportional to distance between the front and rear set of bolts.

No need to update the formulas for me, i did way too many of them during my machinist apprenticeship back in the 90's

I get what your saying tho, the breaking forces on a drop hitch would transfer to the hitch and frame so a longer hitch flange would help distribute the force along the frame. with my rear fuel cell i was having doubts about drilling thru and sandwiching the tank flange with the rear bolt of my old hitch, still thinking about possibly adding some kind of bracing to the new one.

Maybe after I'm finished struggling with my rear quarter damage I'll spend a little time rethinking the issue.