E-450 captain chair armrests usually not factory adjustable. Options include seat cushion to raise yourself, modifying mounting brackets, or aftermarket replacement seats with adjustable armrests.
U-shape dinette curved sections often too large for RV doors. Options include removing upholstery first to separate frame further, window removal, or in-coach upholstery work. Document everything with photos before disassembly.
Flaking faux leather is common on RV seats and typically not covered by warranty on older units. Options are seat covers (most affordable), professional reupholstery (500-1500 per seat), or replacement seats. UV and heat cause material breakdown.
T-track bulb seals available from RV seal specialists. Measure dimensions from old seal and clean track before installing.