That is a problem with adding all of that extra hardware on the end of the air bag fitting. The airbag is constantly bouncing as you drive down the road and the weight of the extra hardware has to be supported by the "elbow" screwed into the bag as it bounces around.

If the air system works correctly then get rid of all of that extra stuff and screw the air hose connector directly into the airbag as GM designed it. If it bothers you that someday you might need to air the bag up separate from the on board compressor, then carry one or two schrader valves and screw them into air the air bag(s) when necessary. I carry two of them in my coach and have never needed them.

I took a local black list call a few years ago from someone who was stranded along the Interstate with what they said was a blown bag. When I got there with a spare bag I found that the problem was not the bag but instead was that first fitting in the bag had broken off flush with the end of the threads of the bag. I ended up installing the spare bag and brought them to my hangar. It took me a couple of hours to extract the old broken piece out of the original bag. By this time it was dark so they stayed over night and we reinstalled the original, now repaired, bag back on the coach the next morning. We also removed all of that extra hardware on the other side and changed it back to stock.

That whole incident added about 1.5 days to their vacation and was caused by something that was totally unnecessary in the first place.

JMHO

I believe all of that stuff is 1/4" pipe thread.

Les schwab or any place that works on trucks will have what you need. 1/4"
npt male to 1/4" hose compression on the line side. Should come with a nut
on one side that you slip over the freshly trimmed line which you press
over a barb and then drop the nit down the line over the barb.

Sully
Bellevue wa

On Tue, Apr 16, 2019 at 4:30 PM kelly stockwell via Gmclist <
gmclist@list.gmcnet.org> wrote:

> I don't want a kit, I just want a 1/4" NPT to the tube connection (no
> blocks, no shut offs, no T). I have an existing line with a nut on the
> tubing
> and the bag.
> Maybe it's not standard and I just go to a hardware store and look for
> things that match.
>
>
> --
> 1978 Kingsley
> Putney VT
>
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