Replacing rear brake cylinders

[1970f100x]

I'm replacind the rear brake cylinders and shoes and springs, should I also replace the master cylinder while I''m at it, or do you think its not a big deal?

[Bullitt390]

I woudn't unless you really need it. Especially with today's parts you never know what you'll end up with. If the m/c is working fine I wouldn't touch it.

Josh

[flyboy2610]

If you do replace, I'd go with a new unit, not a rebuilt one.
I just haven't had decent luck with rebuilt stuff.