I replaced the PS Pump on my 87 SS since it developed a small drip drip from the outlet fitting on the body. I went back to Autozone and inquired as to the warranty on the pump I had purchased 8 yrs ago, Sure on problem! Took the old pump back and they exchanged it ( they stocked it) no cost at all. I was ready for the 8yrs old, yeh will sell you a new one . It also showed that I had never returned the 1st pump so I took that in too and the gave 21.65 cash back.