what makes a truck has the high speed wobbles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigblock79 · 10-21-2009, 11:57 PM

my new truck 79 crew 4x4 dually will get the high speed wobble on the driver side at times but run out at 60 mph good at about 30 to 45 it can get them thanks

Prong · 10-22-2009, 05:16 AM

Sounds like you probably have the dana 60 death wobble. It's usually the bushings in the kingpins that are worn that cause it.

68 TT · 10-22-2009, 08:54 AM

Bad or loose wheel bearings can also cause this.

Driveway Dreams · 10-22-2009, 12:37 PM

My truck has a slight one between 55-65. Then it goes away. But my buddy who mounted my tires said one wheel is bent and that would probably happen. So, mine is a ballance issue...we think.

clinebarger · 10-22-2009, 12:56 PM

A bad tire can also cause a wobble.

bad_burb · 10-23-2009, 12:01 AM

Wheel and tire balance could be an issue. I've seen them all throughout the speed range but usually at the 45-60 mph range. Could be an out of round or separating tire as was stated. In most cases you would feel that throughout all speeds though. Also from my experience, I've had alot of bent dually rims come through the shop. I'd say a good 80% of them we work on. This may be another issue.

I would take it to a good tire shop and have them inspect and balance the tires. This will either fix the problem or help narrow it down.

68 TT · 10-23-2009, 11:53 AM

Sounds like a good excuse to put on some nice Alcoa aluminum rims and new tires to me

Honest honey, I had to spend $4000 on new wheels & tires for my truck.

bigblock79 · 10-23-2009, 10:51 PM

here is a pic

10-21-2009, 11:57 PM	#1
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	what makes a truck has the high speed wobbles my new truck 79 crew 4x4 dually will get the high speed wobble on the driver side at times but run out at 60 mph good at about 30 to 45 it can get them thanks __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11 Last edited by bigblock79; 10-21-2009 at 11:58 PM. Reason: spelling

10-22-2009, 05:16 AM	#2
Prong Registered User Join Date: May 2007 Location: CO Posts: 475	Re: what makes a truck has the high speed wobbles Sounds like you probably have the dana 60 death wobble. It's usually the bushings in the kingpins that are worn that cause it.

10-22-2009, 08:54 AM	#3
68 TT Still plays with trucks Join Date: Jul 2009 Location: Spokane, WA Posts: 3,556	Re: what makes a truck has the high speed wobbles Bad or loose wheel bearings can also cause this.

10-22-2009, 12:37 PM	#4
Driveway Dreams I have car A.D.D. Join Date: Feb 2009 Location: Greeley, Northern Colorado Posts: 4,147	Re: what makes a truck has the high speed wobbles My truck has a slight one between 55-65. Then it goes away. But my buddy who mounted my tires said one wheel is bent and that would probably happen. So, mine is a ballance issue...we think. __________________ -Gerald Building vehicles in memory of the first "car guy" I ever knew, my Grandpa. Bob Dunham 1935-2009. Rest in peace. 61 GMC Suburban SOLD The 86 build thread SOLD Are you a Colorado member?Click here.

10-22-2009, 12:56 PM	#5
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: what makes a truck has the high speed wobbles A bad tire can also cause a wobble.

10-23-2009, 12:01 AM	#6
bad_burb Registered User Join Date: Aug 2005 Location: Vallejo, California Posts: 659	Re: what makes a truck has the high speed wobbles Wheel and tire balance could be an issue. I've seen them all throughout the speed range but usually at the 45-60 mph range. Could be an out of round or separating tire as was stated. In most cases you would feel that throughout all speeds though. Also from my experience, I've had alot of bent dually rims come through the shop. I'd say a good 80% of them we work on. This may be another issue. I would take it to a good tire shop and have them inspect and balance the tires. This will either fix the problem or help narrow it down. __________________ '73 C-30 3+3 Dually 454/TH400 '74 Fleetside 350/TH350 (SOLD) '69 Nova 350/TH350 (project FOR SALE) '63 Nova 305/TH350 3.73 posi (the wife's project)

10-23-2009, 11:53 AM	#7
68 TT Still plays with trucks Join Date: Jul 2009 Location: Spokane, WA Posts: 3,556	Re: what makes a truck has the high speed wobbles Sounds like a good excuse to put on some nice Alcoa aluminum rims and new tires to me Honest honey, I had to spend $4000 on new wheels & tires for my truck.

10-23-2009, 10:51 PM	#8
bigblock79 67 Chevy Stepside Join Date: Mar 2007 Location: Jonesville NC Posts: 836	Re: what makes a truck has the high speed wobbles here is a pic Attached Images __________________ 1967 Chevy stepside 1976 BIG DOOLEY 454 turbo 400 4:11



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