Lift the arm,flip the tab out and the arm should stay up,lay a thin piece of wood or something similar next to the shaft and use a screwdriver to break it loose and slide it off.
The body lines from the front bumper to the 1/4 at the back of the door are the same for 67-76 Valiant,70-76 Dart,Duster,Demon,Scamp. They changed how the bumper mounted in 74. Here is a duster body with a 68 Valiant front clip
Use the correct screws. They can be had from RT specialties and on ebay. They are the same screws used for the front and rear window trim and wax coated
The glass is the same from 67-72 Dart's. They changed to non wing windows in 73 on 2 doors but it stayed the same for 4 doors from 67-76. They moved the door lock button to the middle of the door in 69 but moved it back in 70. The 67 door latch assy is one year only and it required you to use...
IT comes out through the trunk and there is a large C clip holding it in. Do it the right way so you don't damage the hole. Can you get into the trunk from inside the car?
The 75-6 A body had a hump in the passenger side floor pan for the cat converter and the seat frame was made shorter on 1 leg to compensate for it if your using the 75-6 seat and frame. Just a heads up
Yep,any 67-9 dart trunk will work and any 68-76 Dart or Valiant 2 and 4 door sedan front glass will work. They do sell the glass new too for around $200- $250
I used the modern sealant (urethane) on my glass and it ended up bonding the seal to the glass ruining the seals during removal costing me another $300 in seals.