1963 Axle Housing and Rear Suspension Color

[flh73]

Ok i've made it to the rear end and got some good advise on purchasing parts for suspension etc.  When cleaning and detailing front suspension quite a bit of color coding etc. available.  Not so much luck with the rear axle housing, suspension, brake backing plates and drums.   I'm not just going to paint everything black even though this looks good I'm looking for more original color/coatings etc.

 

I've seen and read about newer Buick axle housing with rear loaded differentials state cast color diff housing with painted black axle tubes and the like.  but these first gen Riviera have a front loaded or carrier style differential.  Axle housing one piece.

 

So anyone know the correct color of the rear housing suspension brakes etc.?

[telriv]

Since the pumpkin is cast iron it should be cast in color. The pinion is steel & should be steel in color. The driveshaft is steel & should be steel in color. The actual axle housing is all steel & again should be steel color. The backing plates are also steel but they had a light cad coating on them.