Rear Tires Suddenly Lock Up Going 65

My money is on the brakes, Hose etc... I replaced my brake shoes and did not realize there are two sizes of shoe on each wheel. Only about an inch difference, One primary and one secondary. if put in the wrong place will LOCK UP A WHEEL! Of course you had both rear wheels lock up, so either the wrong shoes in the wrong place on both rear wheels, or it's the hose! At any rate let us all know the outcome.

Boggled minds want to know!

John D. Beckerley
Austin, Tx.