Home » Public Forums » GMCnet » [GMCnet] I don't know jack...
| [GMCnet] I don't know jack... [message #172380] |
Thu, 07 June 2012 09:58  |
Sean
Messages: 189
Registered: March 2012
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Senior Member |
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Hi all,
I've never jacked a vehicle this large, so I have a few of questions:
- I guess I'm going to need a couple of bottle jacks+hooks to carry
in the coach and a floor jack for drydock work. Any recommendations on
what to get?
- My operators manual shows a chain attached to the jack. Do adapters
like http://goo.gl/ZXvgb replace the chain?
- Are there any video/photo guides for jacking the GMC for various situations?
Thanks,
--
Sean
1973 260 Painted Desert
Luna County, NM
Gallery: http://goo.gl/Gfcpd
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Sean
1973 260 Painted Desert
Luna County, NM
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| Re: [GMCnet] I don't know jack... [message #172392 is a reply to message #172380] |
Thu, 07 June 2012 10:59  |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
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| Sean wrote on Thu, 07 June 2012 07:58 |
...
- My operators manual shows a chain attached to the jack. Do adapters
like http://goo.gl/ZXvgb replace the chain? ...
|
Sort of...
The hook does attach to the coach in the same way for jacking the rear of the coach. The hook allows you to use a shorter, easier to carry, bottle jack. Some hooks will also work on the front.
The original jack was (still is on many coaches) a long, fairly high lifting, hydraulic jack. The chain set-up allows the coach to be jacked even if the tires AND the airbags are blown. But it isn't as stable as many would like. It is also not something you want to use on the front. (Even if it shows that in the manual.)
What ever jack you carry, try them at home... before you need it on the road. Just remember that along the road, the coach might be a lot lower due to flat tires, blown airbags or damaged lines.
Not trying to scare anyone... I have only used a jack on a GMC during a trip once. My very first trip... coming home I had "shock issues."
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] I don't know jack... [message #172405 is a reply to message #172392] |
Thu, 07 June 2012 11:46 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Carry at least 2 small bottle jacks, if you can find them, the Ford Branded low jacks at very nice (20 tons, as I recollect.) Get a bottle jack hook (Jim K, Jim B and others) to attach to the rear boggies for the lift. For the front jacking point, located the 2 holes in the forward member and jack there. If jacking the front very high, be ready with jack stands to hold the coach up. Do not get any par of your body under a coach supported only by bottle jacks. A GMC hits the ground in about 0.013 seconds, too fast for you to move.
Jacking the front, be careful with lowering the coach, you can crack a windshield.
If your air bags fail, having 2 jacks allows you to raise the jack by slowly gong down the frame from the front to rear, at the reinforced points to lift the coach high enough to get at the air bags and work on them. Remember Jacks Stands save body parts.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] I don't know jack... [message #172440 is a reply to message #172439] |
Thu, 07 June 2012 15:09 |
Kudzu
Messages: 377
Registered: November 2011
Location: Marshville, NC
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So I assume the ramp fits under the coach, in front of the rear wheels?
About how much does it weigh? Are the front ramps regular rhino-type ramps?
Dan in NC
Caregiver to a 1976 Eleganza II
"Tzetze Fly"
On 6/7/2012 3:46 PM, Kelvin Dietz wrote:
> Not sure why you'd ever need two bottle jacks in the coach. Very
> unlikely you'll be doing anything that you have to get BOTH sides of the
> coach up while on the road. One jack and one hook for the road is what
> I carry.
>
> For home I'd build a couple ramps to get the back up. Pretty easy to
> drive up onto them and then raise the airbags for a few more inches.
> (Then I add a 4x4 "post" under the bogie box in case a bag blows...)
> I've pulled fuel tanks a couple of times with this setup.
>
> http://www.gmcmhphotos.com/photos/g3173-wood-ramp-construction.html
>
> They're not light but they're certainly lighter than if there were solid.
>
> Kelvin
> '73 23' in Eugene, OR
>
>> I've never jacked a vehicle this large, so I have a few of questions:
>>
>> - I guess I'm going to need a couple of bottle jacks+hooks to carry
>> in the coach and a floor jack for drydock work. Any recommendations on
>> what to get?
>>
>> - My operators manual shows a chain attached to the jack. Do adapters
>> like http://goo.gl/ZXvgb replace the chain?
>>
>> - Are there any video/photo guides for jacking the GMC for various situations?
>>
>> Thanks,
>>
>> --
>> Sean
>> 1973 260 Painted Desert
>> Luna County, NM
>> Gallery: http://goo.gl/Gfcpd
>>
> _______________________________________________
> GMCnet mailing list
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1976 Eleganza II
1996 Chevy Impala SS
1999 Kawasaki Vulcan Nomad
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| Re: [GMCnet] I don't know jack... [message #172441 is a reply to message #172439] |
Thu, 07 June 2012 15:11 |
Kudzu
Messages: 377
Registered: November 2011
Location: Marshville, NC
Karma: 0
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Also, since it's up on the ramps, why the jack stands?
Dan in NC
Caregiver to a 1976 Eleganza II
"Tzetze Fly"
On 6/7/2012 3:46 PM, Kelvin Dietz wrote:
> Not sure why you'd ever need two bottle jacks in the coach. Very
> unlikely you'll be doing anything that you have to get BOTH sides of the
> coach up while on the road. One jack and one hook for the road is what
> I carry.
>
> For home I'd build a couple ramps to get the back up. Pretty easy to
> drive up onto them and then raise the airbags for a few more inches.
> (Then I add a 4x4 "post" under the bogie box in case a bag blows...)
> I've pulled fuel tanks a couple of times with this setup.
>
> http://www.gmcmhphotos.com/photos/g3173-wood-ramp-construction.html
>
> They're not light but they're certainly lighter than if there were solid.
>
> Kelvin
> '73 23' in Eugene, OR
>
>> I've never jacked a vehicle this large, so I have a few of questions:
>>
>> - I guess I'm going to need a couple of bottle jacks+hooks to carry
>> in the coach and a floor jack for drydock work. Any recommendations on
>> what to get?
>>
>> - My operators manual shows a chain attached to the jack. Do adapters
>> like http://goo.gl/ZXvgb replace the chain?
>>
>> - Are there any video/photo guides for jacking the GMC for various situations?
>>
>> Thanks,
>>
>> --
>> Sean
>> 1973 260 Painted Desert
>> Luna County, NM
>> Gallery: http://goo.gl/Gfcpd
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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1976 Eleganza II
1996 Chevy Impala SS
1999 Kawasaki Vulcan Nomad
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| Re: [GMCnet] I don't know jack... [message #172445 is a reply to message #172441] |
Thu, 07 June 2012 15:39 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Rhino ramps will hold the front end just fine. However, they should be on concrete. They will sink into asphalt or dirt. Too Bad they are too short to hold both rear wheels at the same time. The built up wooden ramps do the trick.
I carry two small bottle jacks, in the off case that I lose an air bag, I can get the coach back up and install the spare air bag (don't leave home without it).
Ramps are very nice, but they do not travel. I also use one of the bottle jacks and jack hook to stabilize the coach at night, taking the bounce out of the air system.
If it is on ramps, you do not need jack stands, but consider getting wheel chocks, to keep the coach from rolling off the ramps. It does not take much of a chock to stop the roll. I also carry the small chocks in the coach.
Tom Phipps,
75 Avion,
MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] I don't know jack... [message #172447 is a reply to message #172439] |
Thu, 07 June 2012 15:35 |
Sean
Messages: 189
Registered: March 2012
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On Thu, Jun 7, 2012 at 1:46 PM, Kelvin Dietz <kelvin@datsuns.com> wrote:
> Not sure why you'd ever need two bottle jacks in the coach. Very
> unlikely you'll be doing anything that you have to get BOTH sides of the
> coach up while on the road. One jack and one hook for the road is what
> I carry.
I seem to recall reading (not sure where) that jacking up one side of
the front end could put stress on the windshield, so when changing a
front tire on the road, you should jack both sides. Am I mistaken?
Also, stuff happens - if one bottle jack fails, it's good to have a backup :)
--
Sean
1973 260 Painted Desert
Luna County, NM
Gallery: http://goo.gl/Gfcpd
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Sean
1973 260 Painted Desert
Luna County, NM
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| Re: [GMCnet] I don't know jack... [message #172449 is a reply to message #172441] |
Thu, 07 June 2012 15:40 |
Gary Worobec
Messages: 867
Registered: May 2005
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Just remember that if you jack up a front corner of a GMC too high you will
be calling Jim K for a new windshield. It's one of the lessons I learned
early on.
Thanks
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
----- Original Message -----
From: "Daniel Jarvis" <TheJarvis@carolina.rr.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, June 07, 2012 1:11 PM
Subject: Re: [GMCnet] I don't know jack...
> Also, since it's up on the ramps, why the jack stands?
>
> Dan in NC
> Caregiver to a 1976 Eleganza II
> "Tzetze Fly"
>
> On 6/7/2012 3:46 PM, Kelvin Dietz wrote:
>> Not sure why you'd ever need two bottle jacks in the coach. Very
>> unlikely you'll be doing anything that you have to get BOTH sides of the
>> coach up while on the road. One jack and one hook for the road is what
>> I carry.
>>
>> For home I'd build a couple ramps to get the back up. Pretty easy to
>> drive up onto them and then raise the airbags for a few more inches.
>> (Then I add a 4x4 "post" under the bogie box in case a bag blows...)
>> I've pulled fuel tanks a couple of times with this setup.
>>
>> http://www.gmcmhphotos.com/photos/g3173-wood-ramp-construction.html
>>
>> They're not light but they're certainly lighter than if there were solid.
>>
>> Kelvin
>> '73 23' in Eugene, OR
>>
>>> I've never jacked a vehicle this large, so I have a few of questions:
>>>
>>> - I guess I'm going to need a couple of bottle jacks+hooks to carry
>>> in the coach and a floor jack for drydock work. Any recommendations on
>>> what to get?
>>>
>>> - My operators manual shows a chain attached to the jack. Do adapters
>>> like http://goo.gl/ZXvgb replace the chain?
>>>
>>> - Are there any video/photo guides for jacking the GMC for various
>>> situations?
>>>
>>> Thanks,
>>>
>>> --
>>> Sean
>>> 1973 260 Painted Desert
>>> Luna County, NM
>>> Gallery: http://goo.gl/Gfcpd
>>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] I don't know jack... [message #172536 is a reply to message #172475] |
Fri, 08 June 2012 00:08 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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The body is way stiffer on the later coaches for sure.
Sully
77 royale
Sent from my iPhone
On Jun 7, 2012, at 3:40 PM, Emery Stora <emerystora@mac.com> wrote:
>
> On Jun 7, 2012, at 2:40 PM, Gary Worobec wrote:
>
>> Just remember that if you jack up a front corner of a GMC too high you will
>> be calling Jim K for a new windshield. It's one of the lessons I learned
>> early on.
>>
>> Thanks
>>
>> Gary and Joanne Worobec
>> 1973 GMC Glacier
>> Anza, CA
>>
>
> That may be the case for a 1973 but on my 1977 I had raised it that way for many years before the GMCnet existed and never had any problems.. I think that the frame is much stiffer on the later models. I discovered early on (I bought it in 1981) that when lifting one side of the front, both wheels lifted from the ground.
>
> Emery Stora
> _______________________________________________
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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