Hydroboost blowing seals

[1970Moparmann]

Guys, I remember seeing a thread about this years ago, but can't find it.

Any fix?

Thanks.

[MSRacing89]

If you are referring to the GM/ Eldorado type rear calipers.......I have blown seals on these also with hydroboost.  It gets past the small seal that actually controls the E-brake system.  Nature of the beast unfortunately.  We went away from those some time ago.