Shimmy

Lugnut · Post by **Lugnut** » Mon Sep 19, 2005 9:29 pm

Howdy Gents, When my 43 CCKW 352 reaches 30-35 MPH I get a violent shimmy in the front end. I have installed two new tires, and jacked the front wheels up and found nothing loose. The steering linkage seems tight. What do I do next?

armydriver · Post by **armydriver** » Tue Sep 20, 2005 7:51 am

Check the alignment . Details to align are in the TM . I had the same problem and alignment took care of the problem. Also if the steering is loose this can happen. I have to keep pressure against the steering wheel, and if I hit a bump just right the wheels start the saint vidas dance. You just have to slow down, get control and start over again.

Karoshi · Post by **Karoshi** » Tue Sep 20, 2005 12:14 pm

armydriver wrote:Check the alignment . ....//........and if I hit a bump just right the wheels start the saint vidas dance. You just have to slow down, get control and start over again.

DITTO, alignment (and a check of the swivel housings) did it for me.

Karoshi

armydriver · Post by **armydriver** » Tue Sep 20, 2005 12:39 pm

Good suggestion Karoshi. There is so much that can cause this. The WWII jeeps I restored over the years suffered from the same problems as they would encounter wear. All one has to do is to look at how simple the front ends are in these old vehicles. The CCKW truck is 1930's technology.

dr deuce · Post by **dr deuce** » Tue Sep 20, 2005 4:55 pm

Make sure your front tires are at 55 psi.

I had one with a bad upper trunion bearing that could not be felt. Water had gotten up there and with the tin plate under it (Banjo) it holds the water in there and does the bearing in.

Lugnut · Post by **Lugnut** » Tue Sep 20, 2005 7:20 pm

Thanks for the info.

bobc · Post by **bobc** » Thu Sep 22, 2005 3:55 pm

I had a 48 ford PU that was my daily driver that developed this problem,I finally was told by an old timer to change the shocks,it worked!

armydriver · Post by **armydriver** » Fri Sep 23, 2005 9:55 am

That is a great idea bobc, remember to check the fluid in those front shocks on your truck. If one is low that can also cause a problem.

The GMC CCKW

Shimmy

Shimmy

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Shimmy

front end shimmy