Hi guys, new to the forum first post on here. I have a 1970 nova project and I'm just about ready to start doing body work on. My doors are a little off (my drver's side door sags a little). I took both doors off and drivers side door hinge pins and detent roller are in really bad shape. I would like to replace the bushing, pins, and detent so I could have a good fitment on my doors, and good gaps. I've replaced pins/bushings on another car several years ago, but never on a nova. How hard is it to do? By the looks of it has the original factory stamped pins, so no one has ever messed with these doors. It also has bolt on hinges, which seems a little strange, as I've heard 70 and above have weld-on hinges from the factory. My nova could of been an early 70 I guess...? I'm looking to buy the K106 kit that classicInd. has. Could anyone give me some tips, or pointers?