72 are 72 only internals. The slider for the window/regulator are metal. 73 or so they went to plastic.

72-74(?) the lock knob sits in the door. 75(?) up Theres a grommet (noise/rattle reduction?)

72-74/75(?) door panels screw on. 76(?) and up, they pop on

That's all I can think of right now besides the indent around the handle.

Oh, seems 76/77 the key holes seemed just a hair smaller(?)


All statements based on personal observation/experiences and YMMV