Well that sounds promising, i will try running without hydrovac connected and see how it stops, i have ordered new cylinders and shoes for the c3500 rear and looking into options for the front cylinders as they are complete toast! I managed to press out the pistons and it is so heavly corroded in side the only option would be a re sleeve but this is a last resort due to $$ cost, so the hunt for new or good rebuilable ones are my next step, luckily the shoes on the front are good!
