Road Force Balance. How much is too much force, any recourse?
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Road Force Balance. How much is too much force, any recourse? in Past Cadillac Vehicle Discussion; I have the lovely Deville shimmy at highway speeds. Can't figure out why. Something to do with the POS freeways ...
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    EuroCad is offline Cadillac Owners Member
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    Road Force Balance. How much is too much force, any recourse?

    I have the lovely Deville shimmy at highway speeds. Can't figure out why. Something to do with the POS freeways in So Cal probably. Anyway I thought I would try a road force balance at Discount tire. They had to spin 3 of the tires on the rim to line them up for balance or whatever. They said they started at 30 something lbs. and after rotating them on the rim they got them down to 20 which is acceptable. After reading on here 10-15 is ideal should I try to get them warrantied or something? I wish I had read a little more before going down there. Well I still have the shakes too.

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Road Force Balance. How much is too much force, any recourse?

    I'm no expert, but 20 seems too high to me.

    Don't overlook the front motor mount. They tend to fail and when they do they have been known to cause a front end vibration.

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    carnut is online now Cadillac Owners Master
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    Re: Road Force Balance. How much is too much force, any recourse?

    20 OZ. not 20 LBS! They move the tire in relation to the wheel to lessen the weights required to balance properly. Are these wheels stock? are you allowing them to put weights on the front of the wheel? The wheels that require this much weight should be mounted on the rear as well.

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    Caddy-EaRL is offline Cadillac Owners Fanatic
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    Quote Originally Posted by carnut
    20 OZ. not 20 LBS! They move the tire in relation to the wheel to lessen the weights required to balance properly. Are these wheels stock? are you allowing them to put weights on the front of the wheel? The wheels that require this much weight should be mounted on the rear as well.
    No, it's pounds (road force pounds) Not referring to amounts of weights added to the wheels. Road force balancers use those numbers to declare how we'll the tire is balanced. 20 road force pounds is a bit high. 5 road force pounds would be about perfect. 10 road force pounds is usually acceptable

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    EuroCad is offline Cadillac Owners Member
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    Re: Road Force Balance. How much is too much force, any recourse?

    20 sounds high to me too. The Cadillac TSB said 15lbs max, they put it out a while back about the vibes. I am regretting buying the Arizonian tires from DTC. Wheels are stock 17in DTS wheels and they have weights on front and back. Front mount is new AGAIN. I made some torque rods for it but they added to the vibration, they caused a different vibration and noise. Almost like driving a Mustang or something. I took them off for now. I don't need any more shakes. Im going to machine the rotors and change the pads up front and see if that does anything. In hindsight I should have returned the tires right away and got something else.

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    trailor is offline Cadillac Owners Fanatic
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    What about your sway bar end links? My left front tire has over .030 pounds of road force and called for .50 ounces of weight. No vibration. So it's not necessarily true about how much road force. My tires are 225-55-18 Pirelli p6 all seasons.

    My end links were broken and my entire front end has been replaced. Once my finally replaced my front mount did my vibration finally go away.

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    EuroCad is offline Cadillac Owners Member
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    Re: Road Force Balance. How much is too much force, any recourse?

    End links are new. Front mount is new. Tie rods new. Alignment is good.

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