I had my dash air compressor replaced by the Airstream Service Center in Jackson Center. Maybe they could help if you give them a call, although I have not found them very helpful with questions about chassis related items when I call or email them. Seems like the guys in the shop know stuff that whoever handles inquires does not.
If you want others to be happy, practice compassion.
If you want to be happy, practice compassion - The Dalai Lama
1984 310 Limited Motorhome
Courtesy Parking (W/S/E/Wi-Fi) on I-5 in Northern California, 70 miles from Oregon border