79 1 ton with the death wobble - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lowrollin70gmc · 09-20-2012, 10:42 PM

King pins aren't that hard, I cut a relief just above the inner c to relieve some tension and crank them out with a 7/8 allen socket and breaker bar/cheater bar. Hardest part was torquing the new ones to spec, I broke a socket adapter to tighten it to the factory spec of 500-600ftlbs. I had both sides done in about 3 hours to include disassembly and reassembly of all front end components.

It definitely helps leaving the axle in, as I grabbed onto the bumper/fender with the cheater on my belt buckle to torque the new ones down.

obijuan · 09-20-2012, 11:19 PM

Quote:

Originally Posted by GCncsuHD

I torque mine to 130ftlbs dry, 100 if you dab any anti seize on the threads.

No antisieze!!!! You want your lugs to stay tight. GM calls for 140ft/lb and dodges 9/16 take 135. So around there.

Mr. 250r · 09-21-2012, 12:30 AM

I would say putting fuel in a truck or changing the wheel is 'easy' and changing a kingpin more to moderate or hard depending on how bad it is stuck or what tools you have at your disposal and.... how you do it lol as far as the dodge front axles go i love dodges for the diesel i haven't had a problem with my early 04 but my cousin has a wobble on his 04.5, hopefully i never have it on that as i already have it on my suburban

b454rat · 09-21-2012, 07:13 AM

I don't know why everyone thinks it's hard to change the kingpin. I did at least two, both where 78/79 axles that where never changed. I never did it before for the fear it wouldn't budge, or would break or strip something, and that I couldn't change it out. I was dumbfounded when it they came out with little effort. Have a harder time getting the lower bearing plate off....

GCncsuHD · 09-21-2012, 08:20 AM

Quote:

Originally Posted by obijuan

No antisieze!!!! You want your lugs to stay tight. GM calls for 140ft/lb and dodges 9/16 take 135. So around there.

While I agree, there are those that think it is a must to put some on, then they turn around wonder why their studs snapped off when they torque them to the factory values

OLDCHEV4X4 · 09-21-2012, 08:35 AM

I lube my lugs, And I have never had one come loose. Or break off from tightening.

GCncsuHD · 09-21-2012, 08:56 AM

Quote:

Originally Posted by OLDCHEV4X4

I lube my lugs, And I have never had one come loose. Or break off from tightening.

To do them properly, you should only torque them to 80% of the recommended value, since the torque spec is a dry value.

csb#356 · 09-21-2012, 11:45 AM

Well I replaced the bushings and springs and I couldn't get it to do it but it did feel like it tried and that was only at 35 mph. I'm going to the alignment shop today to have that checked. Don't know what to do after that.

Mr. 250r · 09-21-2012, 10:40 PM

Did you run over any good size bumps thats a place it likes to come out at so rail road tracks work as a good test
Posted via Mobile Device

csb#356 · 09-21-2012, 11:07 PM

It doesn't seem to matter what speed I'm going or how big the bumps are, it's just if i'm on the brakes. I tightened up the steering box a little, it was a bit sloppy so I think if I get a new one of those and some tie rod ends it should solve the issue. I also found that the alignment is toed out a little bit so once all that is replaced I'll get it aligned and cross my fingers that I can drive it. Lol

b454rat · 09-23-2012, 12:41 PM

If it does with the only the brakes it sounds like the rotors are warped....

63chevyll · 09-23-2012, 01:47 PM

The dreaded death wobble.

My 85 k30 never had the DW, then After I changed everything to new parts with a lift I all of the sudden the had DW.

Only thing I didn't do was king pins.

And in the past, I just welded a old nut to the upper king pin if the Allen won't break it out
Posted via Mobile Device

09-20-2012, 10:42 PM	#26
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: 79 1 ton with the death wobble King pins aren't that hard, I cut a relief just above the inner c to relieve some tension and crank them out with a 7/8 allen socket and breaker bar/cheater bar. Hardest part was torquing the new ones to spec, I broke a socket adapter to tighten it to the factory spec of 500-600ftlbs. I had both sides done in about 3 hours to include disassembly and reassembly of all front end components. It definitely helps leaving the axle in, as I grabbed onto the bumper/fender with the cheater on my belt buckle to torque the new ones down. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

09-21-2012, 12:30 AM	#28
Mr. 250r Registered User Join Date: Dec 2010 Location: freeburg, illinois Posts: 885	Re: 79 1 ton with the death wobble I would say putting fuel in a truck or changing the wheel is 'easy' and changing a kingpin more to moderate or hard depending on how bad it is stuck or what tools you have at your disposal and.... how you do it lol as far as the dodge front axles go i love dodges for the diesel i haven't had a problem with my early 04 but my cousin has a wobble on his 04.5, hopefully i never have it on that as i already have it on my suburban __________________ 1987 Chevy V30 - http://67-72chevytrucks.com/vboard/s...d.php?t=573854 1988 IROC-Z Camaro - 305/T5 T-Top 1989 GMC V35 - Marbolo Express http://67-72chevytrucks.com/vboard/s...d.php?t=596850 1991 V2500 Suburban Silverado - Sold 1991 V2500 Suburban Scottsdale - Big Nasty http://67-72chevytrucks.com/vboard/s...d.php?t=497423 2001 Ram 3500 5.9 H.O NV56 EC DRW - Sold 2003 1500 Silverado 2004 Ram 3500 5.9 H.O NV56 CC DRW - Sold 2005 Silverado 2500HD 6.6/ZF6 CC LWB

09-21-2012, 07:13 AM	#29
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: 79 1 ton with the death wobble I don't know why everyone thinks it's hard to change the kingpin. I did at least two, both where 78/79 axles that where never changed. I never did it before for the fear it wouldn't budge, or would break or strip something, and that I couldn't change it out. I was dumbfounded when it they came out with little effort. Have a harder time getting the lower bearing plate off.... __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

09-21-2012, 08:35 AM	#31
OLDCHEV4X4 Registered User Join Date: Apr 2000 Location: Chester County PA, USA Posts: 1,228	Re: 79 1 ton with the death wobble I lube my lugs, And I have never had one come loose. Or break off from tightening. __________________ 72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania

09-21-2012, 11:45 AM	#33
csb#356 Registered User Join Date: May 2009 Location: Pinehurst, Idaho Posts: 311	Re: 79 1 ton with the death wobble Well I replaced the bushings and springs and I couldn't get it to do it but it did feel like it tried and that was only at 35 mph. I'm going to the alignment shop today to have that checked. Don't know what to do after that.

09-21-2012, 10:40 PM	#34
Mr. 250r Registered User Join Date: Dec 2010 Location: freeburg, illinois Posts: 885	Re: 79 1 ton with the death wobble Did you run over any good size bumps thats a place it likes to come out at so rail road tracks work as a good test Posted via Mobile Device __________________ 1987 Chevy V30 - http://67-72chevytrucks.com/vboard/s...d.php?t=573854 1988 IROC-Z Camaro - 305/T5 T-Top 1989 GMC V35 - Marbolo Express http://67-72chevytrucks.com/vboard/s...d.php?t=596850 1991 V2500 Suburban Silverado - Sold 1991 V2500 Suburban Scottsdale - Big Nasty http://67-72chevytrucks.com/vboard/s...d.php?t=497423 2001 Ram 3500 5.9 H.O NV56 EC DRW - Sold 2003 1500 Silverado 2004 Ram 3500 5.9 H.O NV56 CC DRW - Sold 2005 Silverado 2500HD 6.6/ZF6 CC LWB

09-21-2012, 11:07 PM	#35
csb#356 Registered User Join Date: May 2009 Location: Pinehurst, Idaho Posts: 311	Re: 79 1 ton with the death wobble It doesn't seem to matter what speed I'm going or how big the bumps are, it's just if i'm on the brakes. I tightened up the steering box a little, it was a bit sloppy so I think if I get a new one of those and some tie rod ends it should solve the issue. I also found that the alignment is toed out a little bit so once all that is replaced I'll get it aligned and cross my fingers that I can drive it. Lol

09-23-2012, 12:41 PM	#36
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: 79 1 ton with the death wobble If it does with the only the brakes it sounds like the rotors are warped.... __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS

09-23-2012, 01:47 PM	#37
63chevyll gets board easy....... Join Date: Mar 2009 Location: Colorado Springs Posts: 717	Re: 79 1 ton with the death wobble The dreaded death wobble. My 85 k30 never had the DW, then After I changed everything to new parts with a lift I all of the sudden the had DW. Only thing I didn't do was king pins. And in the past, I just welded a old nut to the upper king pin if the Allen won't break it out Posted via Mobile Device



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