Front end noise - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68crum · 11-27-2006, 10:52 AM

When I go around a left curve there is a clunking noise in my 81'. It is coming from the left side. It has new lockouts and new wheel bearings, could it be a u-joint?

**Zoomad75** · 11-27-2006, 12:08 PM

Are the hubs locked it? Tcase in 4wd or 2wd? If you are just driving on the street in 2wd and the hubs unlocked the front axle shafts shouldn't be turning at all.

What you might be hearing is from the springs or swaybar with rotton bushings.

68crum · 11-27-2006, 01:03 PM

Its in 2 wheel with the hubs unlocked

Mudder · 11-27-2006, 02:05 PM

Lube (WD40) the rubber bushings on the springs and swaybar and see if it goes away. They will make a lot of noise sometimes like Zoomad said.

68crum · 11-28-2006, 04:31 PM

its more than a single clunk, its a rapid clunk, clunk, clunk. it doesn't stop until i go straight.

Mudder · 11-29-2006, 06:04 AM

See if there are any marks on the inside of your tire like maybe where its hitting something,

jacobs · 12-01-2006, 08:37 PM

Quote:

Originally Posted by 68crum

Its in 2 wheel with the hubs unlocked

Since it's in 2 wheel drive it can't be a u joint. My 70 had a clunking going around a left hand corner only in 2 wheel drive. If the hubs were locked in and the transfer case in 2 wheel drive, there was no noise. My problem was the left locking hub that was worn. I know you have new hubs but it just might be a bad hub or possibly a wheel bearing that's adjusted too loose.

72 CustomCamper · 12-02-2006, 12:24 AM

Check your ball joints. My 86 did that and I had to replace all 4 joints...

Chuck

LONGHAIR · 12-04-2006, 08:48 PM

Quote:

in 2wd and the hubs unlocked the front axle shafts shouldn't be turning at all.

Just because they are not "supposed" to turn doesn't really mean that they don't.........It is not under power but I have seen many trucks with the driveline revolving because the gear lube drag makes things stick.
I would look at the axle shaft's u-joints. They are generally not grease-able, so they eventually sieze up. This can lead to wierd noises, clunks, and in severe cases the steering wheel can snap back straight.

11-27-2006, 10:52 AM	#1
68crum Proud owner of a P.O.S. Join Date: Oct 2005 Location: little rock, Ar Posts: 72	Front end noise When I go around a left curve there is a clunking noise in my 81'. It is coming from the left side. It has new lockouts and new wheel bearings, could it be a u-joint?

11-27-2006, 12:08 PM	#2
Zoomad75 K5Camper Join Date: Mar 2004 Location: Pueblo, CO Posts: 1,513	Re: Front end noise Are the hubs locked it? Tcase in 4wd or 2wd? If you are just driving on the street in 2wd and the hubs unlocked the front axle shafts shouldn't be turning at all. What you might be hearing is from the springs or swaybar with rotton bushings. __________________ Rob Z. 1975 K5 350/465/205/D44/12b 4" lift on 35's- RIP 1991 K5 8.1L/NV4500/241/D44/14b FWC Camper

11-27-2006, 01:03 PM	#3
68crum Proud owner of a P.O.S. Join Date: Oct 2005 Location: little rock, Ar Posts: 72	Re: Front end noise Its in 2 wheel with the hubs unlocked

11-27-2006, 02:05 PM	#4
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: Front end noise Lube (WD40) the rubber bushings on the springs and swaybar and see if it goes away. They will make a lot of noise sometimes like Zoomad said. Last edited by Mudder; 11-27-2006 at 02:06 PM.

11-28-2006, 04:31 PM	#5
68crum Proud owner of a P.O.S. Join Date: Oct 2005 Location: little rock, Ar Posts: 72	Re: Front end noise its more than a single clunk, its a rapid clunk, clunk, clunk. it doesn't stop until i go straight.

11-29-2006, 06:04 AM	#6
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: Front end noise See if there are any marks on the inside of your tire like maybe where its hitting something,

12-02-2006, 12:24 AM	#8
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	Re: Front end noise Check your ball joints. My 86 did that and I had to replace all 4 joints... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"



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