I searched in vain so I will ask: What part number Firestone Air Bags do I need for the front coil springs on a P-37 Chassis? This is the "new" 1981 Euro with the 350 Chevy engine. Thanks

Try Firestone 4100 Coil Lift. I used them on mine.

If you squeeze them with hose clamps like a sausage you can install them through the hole in the arm below.

Info from 97 GM manual:

I used Air Lift bags from PPL. I like PPL because you can actually talk to a real sales person on the phone and they make sure you are ordering the right thing. http://www.pplmotorhomes.com/p...-springs-air-bag.htm

They are right in town, so I can do that. Thanks

I used the air lift 1000 coil bags in my coach . Their lifetime warranty sold me .
Bob