Door Glass, Whats the difference? Advice sought. Options

[frostyf]

Given that doors got a reinforcement bar (late 73?) And the winder mechanism swapped from cable to scissor, does anyone know if the glass wind up window dimensions are actually different?

If you bought decent glass from a 1970 car, would it fit a later type door? Can you swap older glass onto a later door or are they completely different.

Grateful for any advice from those who know!!

Nick

[horizontally-opposed]

The glass is definitely different; as I understand it, there are four versions of the roll-up window glass:

> Early standard, 1970-1973 models
> Early tinted, 1970-1973 models
> Late standard, 1973-1976 models
> Late tinted, 1973-1976 models

After digging through piles of door windows, I can confirm that the glass is different—with the late windows having a small section that angles downward at the bottom towards the back of the door (I think). The way they attach to the early or late regulators is obviously different, and as Bruce noted early windows have metal strips along their leading with tiny studs for plastic rollers that go into the upright window track in each door.

Someone else might be able to nail down the change-over date, and I am curious too. Fwiw, my 914 is the 193rd 1973 model per the VIN and has the early regulators & glass.