I don’t know the interchange well enough to state which parts for which yrs and models
i want to sell some parts soon.
Here are the parts in question I’m not sure about, or could you point me where to find this info out

….. all parts are from a 75 supreme 2 dr

Right front fender
Left front fender
drivers door
pass door
hood
trunk lid
roof
rear window glass

Thanks
Jeff

 

All should fit 73 and 74, though may not be 'correct'... not sure if any of them would fit 76-77, though the rear glass might.
I'm no expert, although I have a '74 (74 and 75 almost exactly the same except for grill and trim tweaks, and unleaded-only).
Some of the gurus will prob chime in..
There is a parts book here that should be able to confirm interchangability for those years.
the glass might also fit the buick regal/century. but not sure.
Unfortunately, those years, while gaining some interest, are not as popular as others.
Glws.

 

thanks Bill
im unsure as well about 76-77 cutlass and other models in general for 73-75.

 

76-77 2drs use completely different sheet metal from the 73-75 cars.

 

Joe, so I understand, roof , doors, trunk , hood rear glass all different for 76-77 supremes than from a 75?

 

Google Images is your friend. The 76-77 cars have COMPLETELY different sheet metal below the beltline. Roof may interchange.

 

Dumped all my colonnade stuff, 6-7 years ago. Very hard to find buyers. You might scout out some FB groups geared towards those model years.