Community Forums

Fugitive861 · 03-30-2023, 04:39 PM

It doesn't seem like rocket science to build a four link with panhard bar on the rear axle and support the chassis on airbags, ditching the leaf springs. Is that "a thing?"

Related question, do the diesel pushers have a level sensor on each corner and some type of control module to interface with? It would be nice to be able to air down or air up for special circumstances.

powercat_ras · 03-30-2023, 09:27 PM

Never heard of anyone doing that. I added the SuperSteer Trackbar and stiffened up the sway bar using the Cheap Handling Fix and that made a huge difference.

I had a 2008 Winn Cambria on E450 chassis and it came equipped with Firestone Air Springs in the rear on a leaf spring E450 chassis. The factory setup was to have 2 air valves mounted in the wet bay and you manually aired the two air springs up as you saw fit, think the minimum air recommended was 30 or 40 PSI each.

I would think if could be done on F53, without totally reworking the suspension, I know you can get the Firestone Air Springs aftermarket.

High Road Travelers · 03-30-2023, 09:33 PM

You might look into the Kelderman Air system to see if it could be modified to do something you want. The standard setup uses a combination of leaf springs and air bags.
Thanks,

Jabber Jaw · 03-31-2023, 06:23 AM

Quote:

Originally Posted by Fugitive861

It doesn't seem like rocket science to build a four link with panhard bar on the rear axle and support the chassis on airbags, ditching the leaf springs. Is that "a thing?"

Related question, do the diesel pushers have a level sensor on each corner and some type of control module to interface with? It would be nice to be able to air down or air up for special circumstances.

You have essentially described "Liquid Spring Suspension"!
4 link, front & rear......but silicone based fluid shocks, versus "air"!

Fantastic system!!

House Husband · 03-31-2023, 07:30 PM

Back in the early 90s, Winnebago cut the back off of the rear leaf springs, added a pan hard bar, air bags and a compressor. That was on gas chassis.
I got to replace the air bags on a friends P32 winne.

Richard

Fugitive861 · 04-01-2023, 05:28 AM

Quote:

Originally Posted by House Husband

Back in the early 90s, Winnebago cut the back off of the rear leaf springs, added a pan hard bar, air bags and a compressor. That was on gas chassis.
I got to replace the air bags on a friends P32 winne.

Richard

Now that’s quite interesting.

tderonne · 04-01-2023, 07:40 AM

Quote:

Originally Posted by House Husband

Back in the early 90s, Winnebago cut the back off of the rear leaf springs, added a pan hard bar, air bags and a compressor. That was on gas chassis.
I got to replace the air bags on a friends P32 winne.

Richard

That was a Jet-Co system. Jet is still around https://www.jetcompany.com/ but that system hasn't been made in many years. Googling Jet-Co will find quite a bit of info about it though.

Closest thing I've seen to a custom 4-link setup is just swapping a complete air ride suspension from a medium duty truck onto different truck. Like this: