i had a pacer pump and one reducer from rb's obsolete and still blew three rack seals. now have the one from speedway and drove 1359 miles to kc and now problems so far. but before the 2nd one blew i put 3400 miles on it. i have my fingers crossed on this one. i do believe the one from rb's was not what it was supposed to be but i left in and used the speedway one on top. ron.