I presume that having slotted rotors when towing a heavy load on a steep downhill grade may be a good idea for a worse case scenario.

L8r,..........dogger

 

If you overheat your brakes enough to glaze the pads while towing a trailer, you really screwed up.

Or you had a complete failure of your trailer brakes and didn't know what to do. In certain rare circumstances I could see it happening.

You might consider buying slotted rotors for that certain rare worst case scenario. Personally, I would install cooling ducts. All the pluses, and none of the minuses. But, that's just me.

 

I also tow heavy, approx. 12,000#. At about 60,000 mi. I replaced my stock front pads with Raybestos Advanced Technology pads, #ATD 965M. The rotors didn't need turning and the result is that the truck stops with less pedal pressure. They are about as dusty as stock and overall I'm quite pleased with these pads. However, at this point I can't attest to their longevity.
John

 

I have the Autozone Gold pads on the front. While they are lasting roughly twice as long as my stock pads, they have completely eaten up the rotors. I have a huge lip at the edge where the pad has eaten them up. I'd rather replace pads than rotors, these were a mistake on my part. Not to mention they have squeaked and squealed from day one, even with disc brake lube.

 

UPDATE: I took the truck in and had them replace the pads and if needed the turn or replace the rotors. I was lucky, one of the rotors had fine cracks in it and the others were borderline, I had them all replaced. Could not take a change while towing the Toy Hauler. Thanks for all the great information.