1964 wheel cylinders fitment

[Greg H.]

Hi all,
I picked up some bendix Wheel cylinders to begin installing my drum brakes on the 64. They come with poly dust seals on each end which is what I am accustomed to seeing on drum brakes, but there is a bracket on the rear mounting plate which interferes with the poly seal. If I remove the dust seal the casting fits snugly between the bracket. Is it correct to install without the dust seal? Or do I have the wrong wheel cylinder?

[Jim L.]

Re: 1964 wheel cylinders fitment

The dust seals exist for a reason; you don't want to install the cylinders without them. From studying your picture, I'd say those are the wrong cylinders for the application.

Jim

[Joe L.]

Re: 1964 wheel cylinders fitment

Hi all,
I picked up some bendix Wheel cylinders to begin installing my drum brakes on the 64. They come with poly dust seals on each end which is what I am accustomed to seeing on drum brakes, but there is a bracket on the rear mounting plate which interferes with the poly seal. If I remove the dust seal the casting fits snugly between the bracket. Is it correct to install without the dust seal? Or do I have the wrong wheel cylinder?

Greg-------


What are the Bendix part numbers of the wheel cylinders you have?

[Greg H.]

Re: 1964 wheel cylinders fitment

Joe, It is Bendix BF33004 and 33005

[Joe L.]

Re: 1964 wheel cylinders fitment

Joe, It is Bendix BF33004 and 33005

Greg------


Those are the correct Bendix part numbers for the rear wheel brake cylinders for your application. All I can figure is one of the following:

1) The wheel cylinders were mis-identified on the box or someone switched them before you got them. The latter only a possibility if the boxes were not sealed when you got them;

2) The Bendix cylinders represent a part number "consolidation" and assumptions were made about applications that was not valid at least for the Corvette application.

How do the new cylinders compare to the old, particularly in length? They should be the same length as the old although some other features may differ slightly.

I would not even consider using the new cylinders without the boots and not just because of the loss in dust protection. I don't think these cylinders will otherwise perform properly for your application.

[Greg H.]

Re: 1964 wheel cylinders fitment

Thanks, Joe. I am afraid I may nit have the old ones to compare. The boxes looked like proper factory packaging.

Maybe someone with a 64 can post a pic of the correct set up...

[Frank D.]

Re: 1964 wheel cylinders fitment

These are NAPA wheel cylinders I put on my '63 - yours should be the same IIRC...
They fit fine and have worked well for over a year.

I'm away from home for a few days so I can't dig out my receipts to provide a part number...sorry...

[Greg H.]

Re: 1964 wheel cylinders fitment

Thanks Frank. Does your back plate have the bracket with a tab coming out at either end of the cylinder like mine?

[Greg H.]

Re: 1964 wheel cylinders fitment

I still need a solution for this issue. My 64 has "Rear Brake Block Brackets" which are welded on the back plate and shown in the LI Catalog as a replacement part "welded on". I believe this is the stock back plate. The wheel cylinders to do fit perfectly between the bracket with out the dust boot. But that seems wrong. I did not take a picture before dis-assembly. Does anyone have a stock 64 drum brake car that may have a picture of the brake set up? Thanks,Greg

[Harry S.]

Re: 1964 wheel cylinders fitment

Hope this helps...... A 63 but should be identical to a 64.

[Wayne M.]

Re: 1964 wheel cylinders fitment

Hi all,
I picked up some bendix Wheel cylinders to begin installing my drum brakes on the 64. They come with poly dust seals on each end which is what I am accustomed to seeing on drum brakes, but there is a bracket on the rear mounting plate which interferes with the poly seal. If I remove the dust seal the casting fits snugly between the bracket. Is it correct to install without the dust seal? Or do I have the wrong wheel cylinder?

Greg -- I just posted this over on Corvette Forum, so I guess that was you. Off an original '64 complete 4.56 rear with dates implying a late January build. I can see about a 10 thou gap between the rubber boot and the edge of the bracket. Guy I bought it from said he purchased in 1968 for a hot rod project and had never got around to installing.

64 rear brake.jpg

[Greg H.]

Re: 1964 wheel cylinders fitment

Wayne,
This is what I am dealing with. This picture is what I found during dis-assembly. The cylinders I purchased will not fit between the tabs on the bracket. I guess I need to find the smaller cylinder somewhere.
Thanks,
Greg