Sounds to me like front sway bar not doing it's intended job. I would check
the links to the lower control arm on both sides, also the sway bar to
frame bushings. If you do not like the feeling of "wallowing around" during
cornering. I personally prefer the feel that Urethane links and bushings
provide, but personal tastes vary a bit. Also, check the upper and lower
control arm bushings. If yours are original, they are likely worn out and
need replacement. Urethane bushings are also available for those. Finally,
check the lower ball joint, as well as shock absorber bushings. Anything
does not look kosher, replace them. Your wife will thank you. Also,
consider moving her seat towards the center of the coach. That seat is
directly over the passenger side front tire.
Jim Hupy
Salem, Oregon

On Thu, Aug 6, 2020, 2:33 PM 6cuda6--- via Gmclist
wrote:

> Guys when you setup the chassis do you bias it any?
>
> The reason i ask is the wife says it feels like her side is falling when
> we corner to the left (yes their is a bit if off or outside camber on the
> road). I can feel it "nose in" on that right side so i'm assuming either
> the load bias is wrong, weak Tbar or something im not familar with yet? I
> havent measure ride high but its not visually bad.
>
> Anyone experience this?
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
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I used to make hub centered wheel spacers, when used with the correct 16"
radial rated steel wheel that would clear the 80mm brake calipers that
widened the track width to close to the rears. I ran a set on my coach
until I bought my Eagle Alloy wheels. About the only thing I noticed
different about that setup was that it made the coach torque steer, which I
didn't like at all. The wallowing around is not a normal condition. Usually
something worn out is causing that.
Jim Hupy
Salem, Oregon

On Fri, Aug 7, 2020, 7:02 AM 6cuda6--- via Gmclist
wrote:

> Does the fact that the front wheels track inboard of the rears make this
> "feeling" more pronounced?
>
> Anyone with spacers experience a difference after putting them on?
>
> Im curious as to see if a wider than stock front track width would improve
> this as well.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
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Another factor in suspension set-up is the weight distribution on all four corners. One torsion bar can lift the entire front end and be carrying way more than it's share of weight if you're not careful. The opposite corner in the rear will try to make up for this by increasing pressure in that air bag. That makes for a heavy wheel on the front and heavy wheels on the other side in the rear.

When I rebuilt my front end, I noticed that one of the pork chop adjusting bolts was way further in then the other one when I was disassembling it. When I put it back together again, I evened them up as much as I could, then set the ride heights, front and rear. I had the coach weighed shortly after that at the GMCMI rally at Pueblo, CO, and the weights were within 120# or so at all wheels.

If the weight balance is off, I'm sure it will affect your handling.

To Rich M re weighing your coach, Ken Burton probably has the most experience but he is a long way from you. (and me)
From my 4 wheel racing experience ( racing and tech inspector) I am somewhat familiar with weighing things.
Most commercial scales that could be used to weigh a motorhome are probably platform scale so they are not condusive
to doing individual wheel weights. Called corner weights at the race track. It can be done on platform scales but requires
a bunch of moving about. If you still have original style GMC rear suspension you should be able to consider each rear
side as one wheel. Rear tire pressures in the side you are doing should be set to the same as each other. Just weighing
one front and then the rear on that side and then turning around and doing the other side may not give good results.
The platform and the pavement beside it need to be in the same plane or the results won't be valid. If the local MTO
office are nice guys ask them if the have individual wheel scales and would they mind participating in the excercise.
Don't do this until you have confirmed at a commercial scale that you coach is NOT over the listed GVW. Have fun.

Rich,

Have you sat in the passenger seat while your wife or someone else drives? Besides the typical passenger seat status as the "nervous seat", the GMC has the most exposed feeling seating position of any vehicle I've driven. Every other vehicle you sit down in it and there's a dashboard in front of you giving a semblance of protection. The passenger sits on a GMC and the dashboard barely comes up to your bellybutton. It takes some getting used to.

Of course, as usual, you've gotten a lot of good responses on how to deal with mechanical issues, but there's a not insubstantial psychological component as well.

Richard