Anyone know where I can buy a set of the correct front wheel cylinders for my '65 GS? The GS had 1-1/8" wheel cylinders and the regular skylarks had the 1-1/16". I can buy the regular ones, but when I order the bigger ones for the GS, all anyone has is the newer style with the external dust caps on them and the different style bleeder jet. The external dust caps won't fit correctly between the keeper on my backing plates and the bleeder jet interferes with the spindle forging behind the wheel cylinder. I am considering machining out my old ones on the lathe and sleeving them back down to 1-1/8" since I can't seem to find any.
Couldn't find any for my drum brake 70. Just honed 'em out and used rebuild kits (no problem getting those.) Brakes are now fine.
Try the Hollander interchange I have heard of using cylinders from an S-10 pickup. I remember paying a LOT (like $50 per) for the new cylinders on my '68. Seemed like a lot at the time anyway...
I think the S-10 ones were the ones that the parts store had and gave me--the book lists them as a replacement, but the bleeder jet interferes with the spindle forging and the dust caps won't fit properly with the backing plates. Mine were both pitted badly inside, so I chucked one of them up in the lathe and bored it out to 1.200", the machined a piece of steel bar stock to that same size (except about .001" smaller) and pressed it in the wheel cylinder. I then chucked the whole works back up the lathe and drilled through it with a a 1" drill bit, then I bored it to size using a boring bar. I then took a drill and drilled the bleeder hole and supply line hole through the sleeve from the outside. After that, I took my wheel cylinder hone and honed the final finish on the inside (which also de-burred where the two holes broke through to the inside when I drilled them). It looks great. Now I just have to do the other one. It took about 3 hours of work to do the first one!
