I am doing a brake overhaul in a week or so, rebuilt calipers, new hoses, rotors, pads, fluid, etc. Do you think I should rebuild my master cylinder why I am there? My only symptoms are pulling when braking and overall subpar performance, I only suspect clogged hoses, 11 year old fluid and bad rotors/pads. Think its worth the trouble?

Why not? Better now that later while you've got everything else apart. You could get a remanufactured one from NAPA for probably around $30 if you didn't feel like rebuilding.

i'd replace it, if you do rebuild it take it to a machine shop and have it honed on a wrist pin machine.

I thought you're not supposed to hone an aluminum-bodied m/c? (Steel m/c's ended in '84)

I vote for a rebuild over buying a rebuilt. I bought a rebuilt; turns out it was leaking internally. I think they sit on shelves in hot warehouses waiting to be bought, and when they're put in, the seals rip.

Remember if you rebuild it or replace it you're going to go through hell bleeding it. Maybe you just want to flush it with new fluid?

That's why Pep Boys and the like only charge $30 for rebuilt units. Half the time they're junk.

I talked to the local machine shop/parts store, a real parts store as TomP would put it, and they said the master cylinder would need to be honed, aluminum or not, but they wouldn't even mess with it. The rebuild kit alone was more the the whole rebuilt master cylinder let along driving to another machine shop that will hone it. So I guess here is a new question, keep the stock M/C and flush it with new fluid, or get the rebuilt one?