Do the handles push forward to open the door ?,If they do they may open if leaned on when braking .This is what I have read somewhere anyway .That was the reason they were switched .i have heard there are newer door leavers from I think the 60/63 year trucks that will fit with the door handle being pulled up to open making it safer .You most likely know about this already but thought I would post to make sure no one falls out of a moving truck if they don’t have there belt on.
