This part

Congratulations, the car is looking really nice.

The 56 BelAir is ours too  https://www.texomashomepage.com/events/piston-heads-auto-club-in-bowie-prepares-for-one-of-north-texas-biggest-car-chows-jim-bowie-car-show/

I have used it for 2 door sedan 1929 Model U

Excellent job!

Which model wiper motor does this fit? 

The yoke inside the wiper motor was broken (I think it is made of bakelite) so I did a 3D print of the material, The wiper motor ran very well after this replacement.
Does anyone have a problem with this part?

Well, I finally pulled off the three layers of seat covers that were installed on my seats over the years and what I found was a dark brown Bedford Cord material.  I have decided to keep it as it came from the factory and am searching for the closest thing I can find to match what I have.  What I have found however is that there definitely were options available for the interiors even if they are not very well documented.

If you are being judged by POC standards and they can't tell you what was original how are they going to say leather is wrong! Personally I would use one of the leather lookalike materials. They are hard to tell from leather and hold up a lot better. They are also less expensive and easier to match and work with. 

I bought discs from a vendor (Pm me if you want to know who)  and when I installed them they didn't seem very good but the seller claimed they were the best on the market. They ran about 20 miles and then came apart leaving my wife setting in the middle of the street with the shaft wedged against the floor! I had to remove it before we could get the car out of the street. I sent him the pieces and he begrudgingly refunded my money claiming he would sell no more discs. I bought another set from a different seller and so far they have held up fine. Make sure you have washers between all the discs and between the discs and the spider so they can flex. And yes they vibrate some at speed but smoothness isn't our cars finest virtue anyway. Picture is what was left of the discs from the first vender.

Thanks Russ/Tom
My disc are also new so it can be that problem. I will try to re-center if possible otherwise I will run slowly:)