Brake question

Tony Smith · #1 02-03-19, 15:15

Quote:

Originally Posted by Harry Moon

Wonder why even when they went to the big brakes on the front they used the smaller wheel cylinder even going so far as to use a different 1 3/8 than on the smaller front brake trucks.

All weight trucks use 1 3/8" bore wheel cylinders on the front, but their physical dimensions are different. Trucks with 6" hubs have 3.5" wide brake shoes, while 5" Hubs have 2" wide shoes.

To ensure the centre bore of the cylinder is aligned with the centreline of the shoe, the wider shoes have physically larger castings (the same casting as the rear brakes, but bored to 1 3/8").

Harry Moon · #2 02-03-19, 15:31

I just wonder if there ever was a part number for the larger brake cylinders with the 1 3/8 bore?

Tony Smith · #3 02-03-19, 15:47

C118q-2192

Harry Moon · #4 03-03-19, 05:59

Quote:

Originally Posted by Tony Smith

C118q-2192

I was thinking of a modern equivalant like the WC4571 etc

Tony Smith · #5 03-03-19, 12:56

No modern equivalent. You have to make one up. See This post

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