1 ton dually 4x4 front end shake&wobble - The 1947 - Present Chevrolet & GMC Truck Message Board Network

40lutzag · 10-15-2007, 10:41 PM

I have a 79 dually 1 ton 4x4. The truck will wobble back and forth badly. I replaced the shocks and carrier bearing. Any suggestions on what else could be wrong to stop the shaking.

abebummy26 · 10-15-2007, 11:02 PM

Its the infamous dana 60 death wobble you pretty much need to rebuild the front end some one else can tell you exactly what you need though. I'm pretty sure it has some thing to do with the knuckle deflecting or some something like that.

from Missouri btw. Welcome to the one ton club I've got a 1983 as you can see in my sig. The 79 is my favorite year. My dad special ordered one new but sold it long before I was born. Btw so no one else gets the chance

. Mods you might want to move this to the 4x4 section there are more guys with non stock 60s than stock so a better response could be had there.

Bad Karma · 10-16-2007, 11:03 AM

Probably needs a kingpin rebuild at a minimum... You might want to tear it down and check their condition, see what's going on in there.

68GMC454 · 10-16-2007, 01:05 PM

welcome from utah,,welcome to the forums...
since i dont have a 4x4,,cant help you....

earl87gta · 10-16-2007, 01:40 PM

Death woble you need ase tof these.

earl87gta · 10-16-2007, 01:44 PM

your king pins and possibly you lower knuckle barings are worn out. you can see in this pick how bad the lower bearings . the king pin bushings are plastic and crack and ware down you here is a pic of how warn mine were and how a grove cut in to the king pin.

earl87gta · 10-16-2007, 01:48 PM

You can see here the race for the lower bearing is pitted and ate up. and the bushing that tits on toop the spring is worn through. the spring is also worn down but you cant tell in a pic. I have mesured all this stuff and compaired it to new for a fax thread I need to finnish it up for every one and get it on the site.

earl87gta · 10-16-2007, 01:51 PM

One last thing

from East TN if you need any help at all let me know and Ill be glad to help out take pics on how to get it apart just let me know.

10-15-2007, 10:41 PM	#1
40lutzag Registered User Join Date: Aug 2007 Location: Roy, Utah Posts: 3	1 ton dually 4x4 front end shake&wobble I have a 79 dually 1 ton 4x4. The truck will wobble back and forth badly. I replaced the shocks and carrier bearing. Any suggestions on what else could be wrong to stop the shaking.

10-15-2007, 11:02 PM	#2
abebummy26 Registered User Join Date: Sep 2006 Location: New Haven, MO Posts: 1,243	Re: 1 ton dually 4x4 front end shake&wobble Its the infamous dana 60 death wobble you pretty much need to rebuild the front end some one else can tell you exactly what you need though. I'm pretty sure it has some thing to do with the knuckle deflecting or some something like that. from Missouri btw. Welcome to the one ton club I've got a 1983 as you can see in my sig. The 79 is my favorite year. My dad special ordered one new but sold it long before I was born. Btw so no one else gets the chance . Mods you might want to move this to the 4x4 section there are more guys with non stock 60s than stock so a better response could be had there. __________________ -Lincoln 1987 GMC S15 (soon to be a chevy clone) 2.5l, 4 speed, no ps, no pb, no ac Silence is golden, but duct tape is silver. Spoken by Cletus the hillbilly I like stickers... a whole bunch. Last edited by abebummy26; 10-15-2007 at 11:17 PM.

10-16-2007, 11:03 AM	#3
Bad Karma Magnificent bastard Join Date: Oct 2004 Location: Glendale, AZ Posts: 196	Re: 1 ton dually 4x4 front end shake&wobble Probably needs a kingpin rebuild at a minimum... You might want to tear it down and check their condition, see what's going on in there. __________________ 1977 Big Block Burb Last edited by Bad Karma; 10-16-2007 at 11:04 AM.

10-16-2007, 01:05 PM	#4
68GMC454 THE VILLIAGE IDIOT Join Date: Nov 2006 Location: Tooele, Utah Posts: 1,405	Re: 1 ton dually 4x4 front end shake&wobble welcome from utah,,welcome to the forums... since i dont have a 4x4,,cant help you.... __________________ honestly honey,,i have no idea how that truck got here.

10-16-2007, 01:40 PM	#5
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: 1 ton dually 4x4 front end shake&wobble Death woble you need ase tof these. Attached Images __________________ Earl 68 2500 4x4 GMC Burb

10-16-2007, 01:44 PM	#6
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: 1 ton dually 4x4 front end shake&wobble your king pins and possibly you lower knuckle barings are worn out. you can see in this pick how bad the lower bearings . the king pin bushings are plastic and crack and ware down you here is a pic of how warn mine were and how a grove cut in to the king pin. Attached Images __________________ Earl 68 2500 4x4 GMC Burb

10-16-2007, 01:48 PM	#7
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: 1 ton dually 4x4 front end shake&wobble You can see here the race for the lower bearing is pitted and ate up. and the bushing that tits on toop the spring is worn through. the spring is also worn down but you cant tell in a pic. I have mesured all this stuff and compaired it to new for a fax thread I need to finnish it up for every one and get it on the site. Attached Images __________________ Earl 68 2500 4x4 GMC Burb

10-16-2007, 01:51 PM	#8
earl87gta Senior Member Join Date: Dec 2003 Location: Kingsport TN Posts: 4,641	Re: 1 ton dually 4x4 front end shake&wobble One last thing from East TN if you need any help at all let me know and Ill be glad to help out take pics on how to get it apart just let me know. __________________ Earl 68 2500 4x4 GMC Burb



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