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Old 02-02-2010, 07:53 AM   #15
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Yes, but. Workhorse continued to build the GM P-chassis with independent front suspension until they introduced their own W chassis. This started when GM sold the rights in 1999, and dmeck's '02 RV must be on a Workhorse built P chassis (which could have actually been built in 2001).

Also, the earlier GM chassis had bad "bumpsteer" issues. This is where the steering changes as the suspension moves. I initially thought this is what dmeck's problem is since our 1983 Winnebago Chieftain did just what he describes. However, GM had fixed the bump steer problem by 1995 and our old '95 TREK drove acceptably. Both of these had short wheelbase.

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Originally Posted by RV Roamer [Gary] View Post
Just for the record, the Workhorse W20 and W22 does NOT have an IFS (Independent Front Suspension) - it is a solid axle.
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Old 02-02-2010, 11:22 AM   #16
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This is probably comparing apples & oranges. About 4yrs. ago, we were on our way to the SW for some sun. We stopped in Or.(to save the sales tax) for new tires on the duals of our PU. As soon as we got out on the freeway I started to notice the PU was swerving from side. I was towing our 28'TT and this had never happened before. I finally stoped at a tire store in Ca. (same company) and complained. They tried to sell me new tires for the front. They still had about 20% tread and chose to wait until later. After about 1000mi. the problem went away. The only thing I can figure is the tires (with a moderate traction tread) were causing it until some of the rough edges wore off.
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Old 02-02-2010, 06:08 PM   #17
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I can sympathize with you. Our Monaco Dynasty steers exactly the same way. Sure is tiring after a long day of driving, especially with any wind. Especially when I have to do all the driving, my wife won't drive it. I've tried everything from shocks to tires, ride height adjustments, front end alignments, I'm getting ready to try a Blu Ox Tru Center. I've been hearing good things about them. I don't understand why they don't spend a little more money on the steering design on these units.

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Canada, eh?
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Old 02-02-2010, 07:28 PM   #18
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Jim,

If you're having those issues with your Dynasty then there may be some unsolved problem. I would suggest you go over to Monacoers and post with your handling problem. The moderator over there is Bill Duckwitz and he has a Dynasty of about your vintage & he knows everything about it.

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Old 02-02-2010, 08:46 PM   #19
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Quote:
Originally Posted by George Schweikle View Post
Yes, but. Workhorse continued to build the GM P-chassis with independent front suspension until they introduced their own W chassis. This started when GM sold the rights in 1999, and dmeck's '02 RV must be on a Workhorse built P chassis (which could have actually been built in 2001).

Also, the earlier GM chassis had bad "bumpsteer" issues. This is where the steering changes as the suspension moves. I initially thought this is what dmeck's problem is since our 1983 Winnebago Chieftain did just what he describes. However, GM had fixed the bump steer problem by 1995 and our old '95 TREK drove acceptably. Both of these had short wheelbase.

I believe the OP stated it was an IFS which would make it a P chassis.

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Old 02-03-2010, 09:44 AM   #20
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As suggested in an earlier post perhaps you are going the wrong direction with your inflations. Over inflating will put all the weight to the center of the tire and will most likely cause poor handling where as proper inflation will have the weight distributed evenly across the full foot print of the tire.
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Old 02-03-2010, 09:55 AM   #21
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For those of you that think that higher inflation (sometimes up to max) is bad, I suggest reading the thread at Discussions

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Old 02-03-2010, 10:06 AM   #22
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My chasis is a p32 which definately has the IFS.

I guess I will have to play with tire pressure and adjusting the gear box. I have checked my tie rods and they look good with no play.

The mileage on this motorhome is only 18k so one would think that parts would not wear out that fast. That said, I have sure replaced a few!!

I have this problem with the coach fully loaded or not loaded at all ie. no water, 1/4 of gas, not much stuff loaded on.

The tire pressure plaque says to run 85psi in front and 90psi rear. I am running 90psi all around. The reason being is the max weight for the front is supposed to be 6000lbs and that is the weight I get when weighing with the coach empty.

Unfortunately I think the coach builder went right to the max weight limit when building this coach, especiallly the front end weight. Not a good idea when modifying a bread truck design front end!!
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Old 02-03-2010, 10:28 AM   #23
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That was just one guys opinion ( a skid control teacher) and he states that stiffer tires will give better braking, steering control and foot print on the road. ( and when he says stiffer he means max printed on tires). He couldn't be more wrong infact it does the exact opposite. You lose foot print as I have already mentioned which in turn creates poor steering, braking and a better chance of puncture from road debri. So you can take the advice of some guy who teaches skid control or from the tire manufactures and engineers. Motor homes are not race cars. If you have an accident as a result of overinflated tires good luck trying to explain that a skid control teacher in Smith Falls Canada told me that all the engineers of tires and rubber and manufacturers of Motor homes were wrong with their suggested air pressures.
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Old 02-03-2010, 03:28 PM   #24
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I really do think that the p32 chasis has a bumpsteer problem and that is why there are so many drivability complaints with this chasis.

I know that when I raised the front end up with adding more air in the air bags that the toe in changes. This would lead me to think that as I drive down the road, any change in side to side movement or any added/subtracted weight from when the alignment was done is going to change the toe in settings.

I know from experience that the wrong toe setting can make alot of difference in how the coach drives. Driving in the wind is the worst for me, I get a little side push causing lean and then the coach will drift over and then wants to steer itself back towards the wind push at a fairly strong manner. I think this is called understeer?

I am worn out just thinking about it!!
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Old 02-03-2010, 04:07 PM   #25
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Are your tires maxed out (or near it) at max pressure? If so this may be a big contributing factor. Years ago I had a small TT that had a tire capacity of about 300lbs. more than the dry weight. At 45 it was all over the road. I put bigger tires and wheels on it and had no more problem at any speed. This problem is a pet peeve of mine. I think a lot of handling problems would go away if the manufacturers would put more tire capacity on and not just the bare min.
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