So, now I understand what happened. As to HL having anything to with this failure....not happening.
I am a big confused on what the bearings are lubed with for the disc brake upgrade. Are they a greased or an oil bath setup? If they are strickly a greased bearing, then they have a normal metal grease cap. If they are oil bath, then they should have a clear plastic dust cap with a removable plug in the center. This way you can see the level of oil and add as needed. BTW, unless things have changed, they use 90wt. gear oil.
As to the parts used for the up grade. They are normally a caliper and rotor from a lite truck or car design. For an example, on my 58 Chebby..the fronts were late 70's to early 80's GM midsize car rotors and calipers. The rears were from a 9" ford rearend from a midsize 70's Lincoln with the 5 lug GM bolt pattern. The only thing the I bought was the brackets, everything else came from NAPA. A whole kit was $600, but only cost me $300 buying the stuff myself.
The reason I know this the disc brake up grade on our coaches is....I talked to dealer in Quartzite this year and he stated that they only design the brackets and use calipers and rotors from either Ford or GM with the correct bolt patterns for our trailer axles. He also stated that they would sell just the brackets and tell me what rotors, calipers, and bearings to use. Napa has plenty of these parts including steel and rubber brake lines. I bet the cost of installing Disc brakes would 1/2 of what a whole kit would cost from a dealer.
