| Re: [GMCnet] Are there tricks on jacking up the rear of a GMC? [message #237105] |
Thu, 23 January 2014 00:02 |
mickeysss
Messages: 1476
Registered: January 2012
Karma:
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Senior Member |
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On Jan 22, 2014, at 9:58 PM, Michael S. Mitchell wrote:
> i bought two bags and had them replaced for 1100 dollars from mgm then one of the bags went flat and had a hole in it, I replaced
>
> that bag for 220 dollars from nick & jimK. WHen i did this i had to jack from the frame a few inches with one bottle jack and then get
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> the hook into the bogie slot and use another bottle jack to get it up to spread the rubber balloon apart to take the leaky one out. I did
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> not have to take any tires off to change it. It took me 45 minutes. to take it out.
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> I never got a receipt for this labor and bags from mgm even though he promised and wanted my email to send the money and
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> rob M stated it is in all my posts on this list, so he could send the receipt with that email and he never did and i never got a receipt.
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> I suppose i could have taken this to prove to the state of ca garage legal mechanical claims department and take action for over
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> charging for work. This must be why i never got a receipt. I replaced the bags because i was told one blew up while parked.
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> I ask to see the blown bag and mgm stated it was thrown away. The risk to going there is to high for me to stand again.
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> But i did not have to take the tires off to change the bag. I am going to buy sulley bags to replace these very small and
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> risky bags that i have now, they are very small and maybe 6 inch long rubber to 8 inches and if they get a little low psi they
> puncture holes in the bag from the inner air valve sticking into them. I was talked out of double bags from jimB from mgm and i
> wanted the best i and i got the worst. statement under penalty of perjury. mickey anaheim ca. 77 palm beach.
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> i forgive mgm for this and will never go back. good luck to them. Taking the tires off is not needed.
>
>
> On Jan 22, 2014, at 7:00 PM, Thomas Phipps wrote:
>
>>
>>
>> To replace a blown air bag, you must remove the wheels. Need a 1 1/16 inch flat open end wrench to fit the nut.
>> I suggest that you jack only under the boggie center section or under the doubled joints on the frame. The frame will dent or bend depending upon a poor choice of frame jacking point. I have used two 2 1/2 ton hydraulic jacks moving them down the frame to carefully lift a coach. Take your time and pick lift points carefully, prefer using the doubled frame points.
>> Get a jack hook. Also, you might consider a chock block to keep the coach from moving, if you must lift the coach.
>> When jacking the front, lift by the center of the crossmember. Any lifting on the front end could twist the front and break a windshield. Some jack hooks, including the ones in the photos, have a point to engage a hole near the front of the frame. This is also a good lifting spot. Never use the bumpers.
>> Tom, MS II, with jack hook, 2 1/2 and 8 Ton hydraulic Jack and big wheel chock on-board
>> --
>> 1975 GMC Avion
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