Need part numbers for C15A brakes

[sapper740]

Originally Posted by Bob Carriere

Hi Derek

Hope you have noticed that Geoff has reviced an old parts listing form a few years ago....... from experience most of the numbers are good as is or they will get you referrenced to modern numbers. The wheel cyl. numbers are correct and literaly off the shelf items.....

I have kept an old oil seal....large 5 incher from an old front axle.... It is a National and has a number... will dig it out and post the number.... and will need to call my seal guy to see what number/brand he sold me the last time... I believe he maintains computer files of everything I bought from him....

For brake parts go to a specialized large truck shop.... you will have better luck than a NAPA or others like them.

The Marmlberg shop in Ottawa has/had an old 6 inch thick manual that contained all the casting mark records and black outline silhouettes of brake cylinders and master cyl. I have no idea where they got it from but if I bring in old parts they can match the outline and get to a part number/brand. My friends Dad use to work there...... after his valve job at 65... they kept him on 3 days a week just to source old parts...... but like many he has since passed on.

Boob

....still diggin' out of the snow...... still have to do the equipment shed roof before it collapses...

Thanks Bob, your post directed me quite nicely to that thread. I'm pleased to see that the parts store has ordered the correct front wheel cylinders (part no. 4571) so they should fit when they get here. They're charging me $65.24 each for rebuilt wheel cylinders which is a lot less than having them resleeved with s.s. I was going to wait until I had the front brakes done before turning the truck around and doing the back to check the rear wheel cylinders but I'm confident those numbers are correct so I can go ahead and order them. Unfortunately, I have a bunch of pricks to deal with from the Home Owner's Association so I have to be tactical when working on my truck.

Question for everyone; is there any advantage for someone like me who spends extended periods of time working out of town (up to 3 months) to use a DOT 5 brake fluid (silicone) which apparently disperses moisture better so it doesn't collect in the wheel cylinders over the standard DOT 3 or DOT 4? Or would completely changing the brake fluid every couple of years solve that problem?

Thanks, Derek.