Switching to manual steering, can I leave the axle shims?

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Switching to manual steering, can I leave the axle shims?

Postby JLeather » Wed Apr 05, 2017 5:22 am

The title pretty much says it all. I'm removing the factory p/s from my D200, at least for the time being, because some of the unobtainable parts are worn/damaged beyond use. Has anyone removed their factory p/s and left the axle shims? I believe that the shims add some caster for better stability, which makes the truck harder to steer at-speed. Is it really that noticeable when the p/s is removed? Wondering if anyone has tried this before, or knows if they must in fact be removed.
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Re: Switching to manual steering, can I leave the axle shims

Postby MadMC63 » Wed Apr 05, 2017 8:59 am

The shims change caster to compensate for the extra resistance from the assist components meaning it increases force to help the wheels right themselves after a turn or keeps them pointing forward in a straight line. If you leave them the truck will still be drivable it will just have to much caster. If the thick end of the wedge is under the front of the axle you'll have to much positive caster. If its in the rear to much negative caster.
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Re: Switching to manual steering, can I leave the axle shims

Postby Hobcobble » Wed Apr 05, 2017 10:44 am

To do the job thoroughly, I'd recommend removing the shims and
replacing the u-bolts. You shouldn't re-use u-bolts. :2cents
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Re: Switching to manual steering, can I leave the axle shims

Postby JLeather » Wed Apr 05, 2017 11:11 am

Hobcobble wrote:To do the job thoroughly, I'd recommend removing the shims and
replacing the u-bolts. You shouldn't re-use u-bolts. :2cents
John


I recall some threads about new U-bolts not being the same as stock. Is there a source for the correct flat-inside U-bolts?
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Re: Switching to manual steering, can I leave the axle shims

Postby PwrWgnDrvr » Wed Apr 05, 2017 12:12 pm

Leaving the shims will make it harder to turn the steering wheel.
Flattened U-bolts are weaker than round and are susceptible to breaking at the corners. (Been there - it was ugly!)
Curved top will hold the springs in place exactly the same as flattened and squared.
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Re: Switching to manual steering, can I leave the axle shims

Postby JLeather » Wed Apr 05, 2017 6:15 pm

So here's an odd thing. I don't appear to have shims on my axle:

Image

Image

It's a factory p/s truck, doesn't look like the axle has ever been off. What gives?
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Re: Switching to manual steering, can I leave the axle shims

Postby MadMC63 » Wed Apr 05, 2017 7:54 pm

Its a front end alignment. May not have required shims when it was built. I added my power assist and installed everything just like it came off of the other truck and my steering is real light. Sort of like a heavy tongue weight trailer is attached. When I finally get around to having it aligned I'll be surprised if they use the shims I installed if any.
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