[whited44]

Extremely common. Take the old one to any truck supply place like Fleetpride.

That’s where I got the replacement.  Here is the new one and the old one if anyone can chime in to see if I’m close

looks like it should work

Thank you guys. Putting some drive axle bags on this that I ordered from Newell. Any tricks of the trade on installing them??

[Richard]

That’s a tough job. When you get in there you will see that Newell used 1 inch air lines to plumb the bags to ping tanks welded into the frame. Those one inch air lines are usually connected to a 45 degree fitting in the top of the air bag. Impossible to get the bag out without removing the fitting. It’s really tight place to get a wrench on that fitting. Take a sawzall and cut the fitting off flush with the top of the plate on top of the bag.

Now we have a fork in the road. If you got air bags with the old school 1 inch inlet, you can simply buy new 45 degree fittings and put it back as found. BUT……….it is likely you received bags with a much smaller inlet. Don’t even think about trying to adapt the existing one inch hose to the air bag. The simplest thing to do is run a NEW air line to the bags from the six pack, you will also need to tee into that line and feed the tag bag. This bypasses all the ping tanks in the frame. If this doesn’t compute, shout out and I will cobble a pneumatic schematic for you.

[hypoxia]

That part is a Hendrickson VS227.  See Post #12 of this thread

Hendrickson Ride Height Valve VS-227.pdf Size: 55.68 KB  Downloads: 9

Barksdale 52321-Q135 Levelling Valve.pdf Size: 1.8 MB  Downloads: 5

That’s where I got the replacement.  Here is the new one and the old one if anyone can chime in to see if I’m close

[whited44]

That’s a tough job. When you get in there you will see that Newell used 1 inch air lines to plumb the bags to ping tanks welded into the frame. Those one inch air lines are usually connected to a 45 degree fitting in the top of the air bag. Impossible to get the bag out without removing the fitting. It’s really tight place to get a wrench on that fitting. Take a sawzall and cut the fitting off flush with the top of the plate on top of the bag.

Now we have a fork in the road. If you got air bags with the old school 1 inch inlet, you can simply buy new 45 degree fittings and put it back as found. BUT……….it is likely you received bags with a much smaller inlet. Don’t even think about trying to adapt the existing one inch hose to the air bag. The simplest thing to do is run a NEW air line to the bags from the six pack, you will also need to tee into that line and feed the tag bag. This bypasses all the ping tanks in the frame. If this doesn’t compute, shout out and I will cobble a pneumatic schematic for you.

Newell sent me the bags with the fittings to adapt the 1” to the smaller fitting in the bag..  I thought that would be the simplest plan 

How many 6 packs are in the rear??  One??  I know one is on the passenger side thru the access to where the chassis batteries are

Will I be unable to use this adapter method??  If so then yes I’ll prob need the schematic

[Richard]

I think only one six pack for your coach in the rear. Not having eyes on what you have, I cannot comment on whether the adapters will work, those 1 inch hoses are stiffer than laundry in January. So flexing them to gain space for an adapter will not be easy.

[hypoxia]

I cannot comment on whether the adapters will work, those 1 inch hoses are stiffer than laundry in January. So flexing them to gain space for an adapter will not be easy.

Boy howdy, that's an understatement.  If that is too difficult, can you replace the line back to the next fitting, the 1" line?  That high quality hose is wunnerful when new but doesn't age gracefully.

[whited44]

I think only one six pack for your coach in the rear. Not having eyes on what you have, I cannot comment on whether the adapters will work, those 1 inch hoses are stiffer than laundry in January. So flexing them to gain space for an adapter will not be easy.

So option 
A: would be to muscle the hoses and use the adapters and cross my fingers 

B: would be to cut the hoses, abandon the ping tank altogether, find the lines from the 6 pack to the now abandoned ping tank, and take the hoses that go from the 6 pack to the right and left side of the ping tank and run them t’d to all 3 bags on each side of the rear, tag and both drive bags

[whited44]

Option C: put the adapter fitting at the ping tank instead of the bag and run a small hose to the bag. Is there room for this??

[Richard]

All will work.

Keep a few things in mind. There are four ping tanks, right drive, left drive, right tag and left tag. But you will see only three. It will appear that the tag ping tank is one, it is not. There is a divider welded in the middle.

Second thing is if running a new line to either tag, it must join in BEFORE the two three way valves. Those valves are the devices that permit adding or subtracting weight from the tag via the three way switch on the dash.

Your shortest and easiest path is to cut the fitting at the air bag for the drives. That has to be done to get the bag out anyway. Then unscrew the one inch hose from the ping tank. There is reasonable access to do that. Big wrench and heat will be your ally. Then put a bushing in the ping tank and run a short line with a Tee to both drive air bags. The advantage is this approach is you don’t have to figure out how to run the airlines to the six pack or the tags. The disadvantage is IF the ping tank is leaking you will still get the leans.

[whited44]

All will work.

Keep a few things in mind. There are four ping tanks, right drive, left drive, right tag and left tag. But you will see only three. It will appear that the tag ping tank is one, it is not. There is a divider welded in the middle.

Second thing is if running a new line to either tag, it must join in BEFORE the two three way valves. Those valves are the devices that permit adding or subtracting weight from the tag via the three way switch on the dash.

Your shortest and easiest path is to cut the fitting at the air bag for the drives. That has to be done to get the bag out anyway. Then unscrew the one inch hose from the ping tank. There is reasonable access to do that. Big wrench and heat will be your ally. Then put a bushing in the ping tank and run a short line with a Tee to both drive air bags. The advantage is this approach is you don’t have to figure out how to run the airlines to the six pack or the tags. The disadvantage is IF the ping tank is leaking you will still get the leans.

I like this.  Let’s call this option D.  I’ll report back. The rear drive bags have been replaced already I’m just doing the front drive bags. So I guess I’ll have to see what has been done already also