Was going to do the GM one ton wheel cylinder upgrade.Called Napa and gave them the P/N 4637337.The number comes up but no brake cylinders availble in western canada..They are asking the year of the GM one ton...Anyone done this upgrade lately???Now where do I get these 30MM brake cylinders??

 

Tell them you want one for a 96 1-ton chev. They are about $10 a piece.

 

only 96? or other years also? any other larger cylinders fit?

 

I'm sure there is a range, but if you tell them 96, you should get the right part. Not sure if there are larger one or not.

 

Thanks Tate....I will call Napa today...Did you do the upgrade on your truck??

 

Yep, theres a pic in my gallery of the difference. Can't say I noticed a whole lot of difference, but my brakes were pretty ratty when I did the swap.

 

i just called a napa store in calgary with part # 4637337.
the parts guy said it was an obsolete number and has been replaced with a premium product @ $16.99.

2727 23rd Street N.E.
Calgary, AB, T2E 7M1

Phone: 403-250-7334
Fax: 403-252-1854

total of 4 in stock at the store. . .

 

See if you can get a price by just giving them an application. Should be able to get them cheaper than $17 a piece. But in the scheme of things, an extra $35 isn't that bad.

 

That's what i paid for mine 2 years ago.