Will the brake master cylinder for a 36 Master series (group # 4.650, part # 5450588) fit and work on a 36 Standard (part # 5450257)?

The Master Parts Catalog seems to imply that the only difference is that 5450257 doesn't have a 11/32 hole through the cylinder wall. The bore diameter is the same. If that is the only difference, will it bolt up and work?

For example, the wheel cylinders are listed with different part nos. in the Master Parts Catalog, but the different years will bolt up and work (master and later years had a slightly larger bore--better braking or cost cutting for the Standard?).

Thanks!

The casting is completely different as well as the mounting of the clutch pedal.Also the mounting was slightly different due to the frame design.

The Standard used different size wheel cylinders to balance the brake action for the lighter car + it used cheap stamped steel drums rather than the cast iron (braking surface) drums that the Master had.Also the steel drums required a different material for the brake linings.

Chev Nut,

Thanks for the information--now I know not to purchase the master cylinder in question.

Yep, I have noted that the brake drums are stamped steel rather than cast like Master. But Henry's Lady was the same!

I didn't know that a different brake shoe material is needed. Would it be softer than the master linings?

I've got NAPA brand bonded shoes on the car presently. One can still buy these at the parts store since the same brake shoes were used a long time (1950's??). I've been stopping ok--but could these be wearing the drums more? Although now that I think about it, after the car sits unused for awhile, the brakes will squeal while on that drive. But if I go on a fairly long drive and use the brakes, the squealing diminishes greatly. I thought it might be rusty drums from sitting, or maybe brake dust, causing the squeals

The Standard lining is just listed as having a "semi-moulded lining" and being of a "different coefficient of friction".From what I remember the steel drums could cause the brakes to be too touchy with the incorrect linings.Todays linings are way different than what they used back then so as long as they work they are OK.The squeaking is normal, especially if its bonded linings.Thats why the drums had the big springs wrapped around them when they went to bonded in 1949.
Today we would think nnothing of it but back then they didn't want the brakes to hold too good as the people buying the car new would be coming from a car with mechanical brakes.
The steel drums do heat up quickly.Even the mechanicals in my '34 heat fast on steep hills.
If your master cylinder is bad I would resleve it rather than put on a new one.A good stainless sleve will last for 50 years or more.

The master cylinder on my car is ok (as far as I know ). It doesn't leak down--although it sure wouldn't hurt to flush out old and put in new fluid. There was a Master master cylinder (sounds like stuttering doesn't it :rolleyes: ) for sale pretty cheaply, and if it would have worked, I would have gotten it as a spare.