I have a Powermaster in my 91 V3500 with a small block for about 10-years now. A couple of years ago it did start having a problem with the starter continuing to spin for a few seconds after I let off the key, but it still starts and engauges with the engine reliably. I went to Summit Racing, and bought a back up Powermaster starter just in case the one I have now craps out. Since I have had the starter for some 10-years now it is way past warranty so I just paid for another one.