I recently begun a 5 inch chop on a 49 Merc for my uncle. Although, I am experienced in collision repair, rust restoration, and custom body work, this is my first chop. I already chopped and tacked the A-pillars and have begun tacking the B-pillars. I noticed that the doors need to be angled in to match the roof. I have read that the inner door shell can be cut the full length of the door and then bend to fit. I am also concerned about the window fitting after I tweak the door. Does anyone have pics of the before and after of the work required on fitting the door? And Does anyone have suggestions?[/IMG][/IMG][/IMG]
you just do a pie cut and bend them in. usually the thickness of the cutoff wheel or just a tad more on the "a" pillar door frame will get you there. the big thing you need to watch is making sure the door top is parallel to the door opening. where the glass will come up thru the door is what im trying to say i guess.
Hey, Some adjustment of the division bar and regulator will be necessary to fit the new path of travel of the side glass. Usually body shims can be used to "kick" out the regulator inside the door shell. All must be in the same plane as the top frame of the window when the "U" channel felt is installed.
With a 3 or 4 inch chop you don't need to slice the whole inside door panel and angle it. You just angle the posts and the glass channels. The glass will slide through the stock slot just fine. Maybe with 5" chop you have to? I have heard others say once you go beyond 4" then you have all these extra things that have to be done. because of the extreme post angles.
Thanks for all the help guys. I finally posted some pics. The reason it took me so long was that I was studying for finals. Now I have the whole summer to work on the merc.
mikes51 is right - you can slice the door if you want to but the thing that matters most is that the posts run in a straight line from the opening in the top of the door that the glass slides up through. I know a guy with a chopped '51 Chevy that must be cut around 7 or 8 inches (LOW!!) and his regulator is just spaced out at the bottom inside the door to allow the glass to move up and down without binding. He's been driving it for a couple years with side glass in there with no problems.