Rotor Size follow-up and information?
Follow-up to my brake replacement situation. I have 33,000 miles on the 2004 Titan and the passenger pads are down to less than 10 % pad. Just in the last 2,000 miles I have noticed a very slight pulsation in the brake pedal, so I tried the dealer for a free replacement. Local dealer wanted to charge for a brake job, even mentioned turning the old rotors, because of the pad wear. So I decided I would spend less money than they charge and replace the brakes and rotors myself. I hate dealers (STEALERS)!
I ordered Powerslot rotors and Akebono ACT pads from tirerack.com, and the rotors are the "old design", one edge of the rotor is thinner than the other. When I received the rotors, I called Tirerack and they said they had the "new design" rotors in another warehouse and sent me a second set, which turned out to be exactly like the first "old design" set.
So, I spent a lot of time this week talking to Mossyperformance, thinking they had the newer design rotors based on the photos they published and were attached in this thread per Qwikwhip. The photos from Qwikwhip show the old and new rotors and mention the Powerslots edge thickness, but no photo of the Powerslot rotors. When I mentioned the order from Tirerack, Mossyperformance pulled a number of their Powerslots from the shelf and all were identical to the old design, none of them had the same edge thickness as the "new" Nissan rotors. The tech at Mossy couldn't tell me why they mentioned the Powerslot rotor thickness in the photos they took without checking any rotors.
Upon learning this, I called Powerslot and they told me they knew of none of the new designs being received for slotting. A tech rep at Powerslot said he thought that the brake pedal height had a lot to do with the judder problem (I don't remember his exact reasoning but it sounded plausible at the time), and that is why it is the first check mentioned in the brake replacement TSB. He also mentioned that in the TSB Indexing of the rotors is very carefully mentioned and should be performed, which leads him to believe that is why the original rotors are different edge thicknesses due to spacing of the calipers, brackets, wheels, etc. He thinks on most of the new brake replacement jobs that some of the rotor outer edge has to be machined away to make them fit properly, so the new rotors are cast with the same edge thicknesses, and then made to fit. He also mentioned that 270 mm edge thickness is more than enough pad to prevent warping, except in severe duty use, and with improved metallurgy the Powerslot rotors are an improvement over the OEM rotors.
This has led me back to using the first set of Powerslots and Akebono ACT pads. I will put this set on this weekend and see how they perform. I have the ACT pads on the 2002 Sequoia now, but with smooth rotors, and they are wonderful. Will follow-up in a couple of weeks with an update.
This ordeal has been much more work than expected, but I think I learned a few things. Who would have known that after two years it would be so hard to get good information regarding the brake parts for this truck. I ordered from Tirerack last fall, new rotors and pads for the Sequoia, replaced the pads and rotors in minutes, $ 210 total, and no problems what so ever.