small to big bolt pattern adapters

I've had the quarter glasses out and back in before but I can't instruct you how to. The inner panel has to come off. Cover all the sharp metal edges with duct tape ( saves your hands ). They are a nightmare to adjust so they'll meet the door glass corretly. Then if you restore the door hindges and the door alignment changes, you'll go back at the quarter glass again. :(
The vert quarter glasses are soooo much easier to get in and out. Regulater too for that matter.
I'm currenlly running 4 adapters on my 67. The problems in the history of adapters is where the balancing weights on the drums interfeared with the adapters. The adapter needs to meet perfectly flat against the drum. Plainly stated in the instructions.
I had to grind a little of the weights away on 2 of my drums but I can't recall was it fronts or rears.