1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

[Ian G.]

Knowing that 5450527 & 5450528 1 3/16" wheel/brake cylinders for 60-62 cars are hard to come by, I'm hoping someone knows what the Raybestos, Wagner, Bendix etc. interchange numbers are (even if outdated) to aid me in hunting down NORS replacement wheel/brake cylinders? I've read posts indicating the pedal feel is better than on current 1 1/8" cylinders and would like to use them on my 59 instead.

Thanks!

[Mike M.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

why not bore your 1 1/8 cyls to 1 3/16 during a sleeving process. mike

[Joe L.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

why not bore your 1 1/8 cyls to 1 3/16 during a sleeving process. mike

Mike and Ian------

I agree. And use wheel cylinder kits Dorman #33149.

One caveat: you will need to check to see if the boots for the 1-3/16" cylinders are the same as for the 1-1/8" cylinders. I think they are but I'm not sure.

[Ian G.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

I imagine the boots & cylinders for 1 1/8" wouldn't be tight in the 1 3/16" bores I've seen rebuild kits though. But the overall size of the casting is the same?

[John F.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Ian, I just sold a whole parts lot that included a large 022 M/C, 527, 528, and both rear 649's for a 62 to GEM62 over on the corvette forum. Do a search over there.

[Ian G.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

nada sadly.

[Jim L.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

I'm not aware of any wheel cylinders which will directly interchange to give the 1-3/16 bore. However, if you don't mind making a minor modification to the backing plate, you can adapt wheel cylinders from a 1969 IH vehicle and end up with 1-3/16 cylinders.

See posting #9 in this CF thread:

http://www.corvetteforum.com/forums/c1-and-c2-corvettes/2395146-wheel-cylinder-question.html

I've been using these wheel cylinders on my '60 for several years and they work fine.

Jim

[Ian G.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Thanks John. I saw your post, but I wanted to avoid any modifications if possible. Your post is what led me to look into this as a matter of fact. I've seen a few 1 3/16" brake cylinders on eBay now and again and was hoping someone knew or had some interchange books. I may just overbore my front wheel cylinders, but I'll need to find the proper pistons which aren't easy either.

[Jim L.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Before I'd be willing to bore a 1-1/8 wheel cylinder, I'd want to compare the OD of the casting to the OD of a real 1-3/16 cylinder. I'd want to be sure the modified cylinder can withstand the line pressure which can exceed 500 PSI.

As far as a source of pistons..... try NAPA. Their brake parts catalogs list wheel cylinder piece parts.

Worst case, buy the IH wheel cylinders and harvest the internals.

Jim

[Joe L.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

I imagine the boots & cylinders for 1 1/8" wouldn't be tight in the 1 3/16" bores I've seen rebuild kits though. But the overall size of the casting is the same?

Ian------

Yes, you would have to also obtain the 1-3/16" pistons. I thought the Dorman kit included those, but it does not.

You would also have to confirm that the casting OD is the same. This is what I was getting to when I said that you would need to determine if the boot size was the same for the 1-1/8" and 1-3/16" cylinders because the Dorman kit includes boots for 1-3/16" bore cylinders.

[Pat H.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

I bought a set of 527/28 from Paul Mazut about year ago. I understand that he still had a complete front and rear set that was on his website. paulmazutcorvette.com

[Dan B.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Another idea would be to sleeve the originals DOWN to 1/1/8 and use new guts which are commonly available. Appearance is the same and I doubt you could tell a difference in functionality the way we drive the cars these days. D

[Bob W.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Were the 1 3\16 wheel cylinders used on the fronts or at all 4wheels?

Bob

[Jim L.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Front only. The rears cylinders are smaller. The larger front cylinders cause the front brakes to do most of the work of stopping the car.

[Bob W.]

Re: 1960-62 5450527 5450528 1 3/16 front wheel brake cylinder interchange numbers?

Jim Thanks for the reply. I guess I have to start looking at old wheel cylinders now.

Bob