Home » Public Forums » GMCnet » Bad Shock
| Bad Shock [message #321154] |
Wed, 26 July 2017 15:44  |
SkyKingsley
Messages: 9
Registered: July 2017
Location: Kansas City, MO
Karma: 0
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Junior Member |
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Hey all, I need some peace of mind... I have 1 bad shock in the rear, is it OK to drive like that? I understand ride might suffer, but I just want to make sure I'm not doing anything stupid. I've got some replacement KYBs but I won't have time to get the wheels off till next week.
1978 Kingsley -
Kansas City, MO
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| Re: [GMCnet] Bad Shock [message #321155 is a reply to message #321154] |
Wed, 26 July 2017 15:50  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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If your just taking some short trips it will be fine. Probably been broke longer than you think.
JR Wright
78 GMC Buskirk Stretch
Michigan
> On Jul 26, 2017, at 4:44 PM, Andrew wrote:
>
> Hey all, I need some peace of mind... I have 1 bad shock in the rear, is it OK to drive like that? I understand ride might suffer, but I just want to
> make sure I'm not doing anything stupid. I've got some replacement KYBs but I won't have time to get the wheels off till next week.
> --
> 1978 Kingsley -
> Kansas City, MO
>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Bad Shock [message #321175 is a reply to message #321168] |
Thu, 27 July 2017 09:46 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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I had 5 bad shocks, basically no resistance. Only the drivers front was even close.
Drove on them for a year before I figured it out LOL
So Yeah, you're probably OK
________________________________
From: Gmclist on behalf of Jerry Sitzlar via Gmclist
Sent: Wednesday, July 26, 2017 10:56:23 PM
To: gmclist@list.gmcnet.org
Cc: Jerry Sitzlar
Subject: Re: [GMCnet] Bad Shock
I just replaced all my shocks with new KYBs last month. Made a world of difference in the ride. Three of the old shocks were completely shot and the
other three were getting weak. I have no ideal how long they were bad.
Jerry
--
Jerry Sitzlar..... 77 Eleganza II, Twin bed, dry bath......
Lenoir City, TN
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Bad Shock [message #321178 is a reply to message #321175] |
Thu, 27 July 2017 09:58 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Even ONE bad shock can cause all sorts of handling misbehavior during braking!
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"
________________________________
From: Gmclist on behalf of Keith V
Sent: Thursday, July 27, 2017 09:46
To: gmclist@list.gmcnet.org
Cc: Jerry Sitzlar
Subject: Re: [GMCnet] Bad Shock
I had 5 bad shocks, basically no resistance. Only the drivers front was even close.
Drove on them for a year before I figured it out LOL
So Yeah, you're probably OK
________________________________
From: Gmclist on behalf of Jerry Sitzlar via Gmclist
Sent: Wednesday, July 26, 2017 10:56:23 PM
To: gmclist@list.gmcnet.org
Cc: Jerry Sitzlar
Subject: Re: [GMCnet] Bad Shock
I just replaced all my shocks with new KYBs last month. Made a world of difference in the ride. Three of the old shocks were completely shot and the
other three were getting weak. I have no ideal how long they were bad.
Jerry
--
Jerry Sitzlar..... 77 Eleganza II, Twin bed, dry bath......
Lenoir City, TN
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| Re: Bad Shock [message #321189 is a reply to message #321154] |
Thu, 27 July 2017 16:00 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Ok, can't hold it in any longer, gotta ask. How can you tell you have bad shock? It's not like you can walk up to the hood or trunk of these and do the bounce test. There I feel better now!
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] Bad Shock [message #321190 is a reply to message #321189] |
Thu, 27 July 2017 16:27 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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I would say if you drive it and it does ANYTHING funny over bumps / rolls you have shock issues.
Mine did this weird corner to corner rocking that made sense one I saw which shock was good.
Otherwise you has to pull them and push on em. If they move without a lot of work, they are bad.
If they are Bilstiens, they are probably bad
If they are not KYB they are probably bad
________________________________
From: Gmclist on behalf of tom geiger
Sent: Thursday, July 27, 2017 4:00:30 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Bad Shock
Ok, can't hold it in any longer, gotta ask. How can you tell you have bad shock? It's not like you can walk up to the hood or trunk of these and do
the bounce test. There I feel better now!
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Bad Shock [message #321191 is a reply to message #321190] |
Thu, 27 July 2017 16:37 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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On the KYB shocks, if they still are holding gas, you can consider them as
o.k. Look under the upper bell onto the shafts and inspect for any liquid.
If you see any, replace the shock.
Jim Hupy
Salem. OR
78 Gmc ROYALE 403
On Jul 27, 2017 2:28 PM, "Keith V" wrote:
> I would say if you drive it and it does ANYTHING funny over bumps / rolls
> you have shock issues.
>
> Mine did this weird corner to corner rocking that made sense one I saw
> which shock was good.
>
>
> Otherwise you has to pull them and push on em. If they move without a lot
> of work, they are bad.
>
> If they are Bilstiens, they are probably bad
>
> If they are not KYB they are probably bad
>
> ________________________________
> From: Gmclist on behalf of tom geiger tgeiger@burnsmcd.com>
> Sent: Thursday, July 27, 2017 4:00:30 PM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Bad Shock
>
> Ok, can't hold it in any longer, gotta ask. How can you tell you have bad
> shock? It's not like you can walk up to the hood or trunk of these and do
> the bounce test. There I feel better now!
>
> _______________________________________________
> GMCnet mailing list
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> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: Bad Shock [message #321200 is a reply to message #321189] |
Fri, 28 July 2017 00:03 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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The last 3 shocks I had go bad over several years. On one the shaft was busted in half under /inside the boot area, the other 2 leaked oil on the floor.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Bad Shock [message #321202 is a reply to message #321154] |
Fri, 28 July 2017 09:13 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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If/when you go to remove the shocks, do yourself a favor and hit the nuts/bolts with your favorite lubricant. WD, PB Blaster, Kroil. A few days if possible ahead of time. Mine were darn near impossible. Given that your head ends up in the wheel well leverage can be difficult if you dont have a big impact wrench. Use all proper cautions when the coach is up in the air. blocks, jack stands, common sense. There is no reason your body needs to be under any part of the coach.
It helps to release the air in the bag, so you can move the bogie arm up and down a bit as needed to get the old ones out. A length of 2x4 helps as a lever in this regard under the bogie arm.
Its a good time to inspect your air lines, brake lines, and drums and inspect and repack your rear bearings, since your only one more cotter pin and nut away to pull the rear hub assembly... If your feeling brave, crack open the wheel cylinder bleeder screws and put a few wraps of teflon tape on them. (Thanks Matt C). It will make your life easier.
Lastly at least for KYB shocks in the front. The odd angle over time sometimes damages the poly shock eye bushings. If the shocks are still good you can just replace the eye bushings. Jim K sells them I think and I have a part number around here somewhere. I did this for the fronts of mine and it helped a lot. Its somewhat of a chore squeezing the new bushings in but a bench vice and large washer helps. You become a pro on the 4th one.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
[Updated on: Mon, 31 July 2017 07:40] Report message to a moderator |
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| Re: Bad Shock [message #321376 is a reply to message #321154] |
Mon, 31 July 2017 07:38 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I have the replacements for mine, and I suspect when I install them, I will again enjoy thhe value of the $40 H-F impact wrench.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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