For 2003 F53 front wheel bearings, use high-quality lithium complex grease rated for wheel bearings, such as Valvoline MaxLife or Timken grease. Avoid mixing different grease types and follow the proper torque sequence: 30 ft-lbs, back off, then 17 in-lbs.
Starter relay is in engine bay fuse box on Ford 7.3 Godzilla. Starter staying engaged usually means stuck relay contacts. Replace relay - should be warranty covered on 2022 unit.
Intermittent Greyhawk AC with working fan indicates compressor clutch cycling. Check refrigerant level, clutch engagement, and voltage at the clutch coil. Low refrigerant is the most common cause.
Find 4.25x2.25 oval dually valve stabilizers on Amazon, truck tire shops, or RV parts suppliers. Search dually valve extender kit. Crossover extension tubes are alternative that routes stem to accessible location.
E-350 and E-450 use same V10 engine with nearly identical 8-10 MPG fuel economy. E-450 has heavier suspension, brakes, and higher GVWR. Choose based on weight capacity needs, not fuel economy.
A spinning handle on a stuck-down stabilizer jack typically indicates stripped internal gears or a broken drive mechanism. This can often be fixed by accessing the jack's internal components and replacing worn gears or tightening loose connections.
Pinion seal leak on 2021 F53 should be warranty repair. Pool of oil under diff indicates seal failure. Critical to maintain pinion preload during repair. Verify oil level before driving.
Tow/Haul mode works with cruise control. Use Tow/Haul for all RV driving - better shift points and engine braking.