I had metal valve stems installed so both the outside tire and inside tire valve stems are pointed out. Same as filling one tire but do it twice. So much easier than trying to fill the inside tire with one of the dual chucks.
Tire-Man Valve Stems
Chris and Jane
2013 Open Range Journeyer JT337RLS
2006 Dodge Ram 3500, 4x4, Crew Cab, DRW, 5.9 turbo diesel
1996 Harley Davidson Electraglide