Re: warped rotors
Well I have a neighbor with a 94 2 dr full size Blazer, he has towed boats for years with it, and he had the same problem. What he learned is that the self adjusters for the rear brakes don't really self adjust, so after a while all your stopping is on the front brakes, and that leads to warped rotors. So what I would do is go through the whole brake system and make sure the rear brakes on the truck are working right. BTW, we had the same problem on an 88 toyota camry, with front disc and rear drums, when new, front brakes lasted 30K, when it got older, and the self adjusters didn't work well, we were getting only 15K out of set of front brakes, the Toy tech said the same thing happened with the older Toy Land crusiers.<br />About brake rotors, I had a chronic warping problem with my 98 Jeep Grand Cherokee, and most people with them also had this problem. They used a composite rotor with a stamped steel center section welded to the cast iron disc. On the advice of an independent Jeep tech, I switched to Wagner full cast rotors, and these have lasted for nearly 50K miles with no warping, the OE was warping every 11K, with no towing!<br />Also make sure your trailer brakes are adjusted well and work right.