RV Tires & Wheels: Complete Maintenance & Safety Guide
Essential RV tire safety guide covering selection, age limits, maintenance, and when to replace.
Essential RV tire safety guide covering selection, age limits, maintenance, and when to replace.
Upsizing to 275/70R22.5 from 255/70R22.5 is possible if clearance allows. Measure wheel width (needs 7.5+ inches), check steering clearance, and verify load rating before changing.
You likely have an incompatible control box model. The 9430A751 with dual SIG terminals is designed for true multi-zone systems, while your single-zone setup needs a simpler control box with one SIG terminal.