Physical warping of metal rotors is exceedingly rare. Instead, the pulsating pedal feeling is almost always caused by an uneven buildup of friction material—known as pad deposits or pad imprinting—baking onto the rotor surface.
Clearly you have never turned warped rotors before. It is very easy to warp brake rotors by riding the brakes constantly down hills and mountain grades. I delt with it constantly during my Automotive shop days. I never had it happen on my vehicles thanks to being a bit easier on the brakes and engine braking as needed.
As a former automotive mechanic, I most certainly have delt with "warped" rotors and have turned many a set. But they are and always have been the exception, not the rule.
Then you should know that any one that complains about warped rotors is usually riding the brakes constantly
Perhaps in the Mountains, but brake riding is not that common either except for old guys (and I'm an old guy) and ladies. Back in the '70 & '80s with single disk rotors vs ventilated rotors, more actual warping may have occurred. And back then the pad materials were way more likely to leave deposits on rotors when over heated. Todays ventilated rotors and ceramic pads, there is even less deposits when over heated. If warping is actual, it is poor installation of the wheel onto an unprepared hub or wheel surface such that the two surfaces do not lay flat on each other... again, rare.
I've got Bronco wheels and 1" spacers. The brakes fit without the spacers. The Bronco wheels I have are +25 or +30.
I have stock FX wheels and the rotors and calipers clear perfectly. These are very well designed for this truck. The braking performance is great. I had to relearn how to brake with this truck. Pedal effort is half what stock was. I plan to keep this Ranger for a long time so it was well worth the price. I left the rear brakes stock.
might need to jump on this upgrade when the pads and rotors go on the stock setup
If you drive in the mountains, the stock front brakes over heat and warp. My F150 had the same issue and I had to repalce with drilled and slotted rotors. It is not about riding the brakes. It is the stock brakes are not designed for that type of driving. The Wilwood rotors and calipers fixed my Ranger.
I live in the mountains as well and I never had any issues with my front brakes warping during the 50-plus thousand Miles I put on my truck
