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Jack Stands on SubFrame Connector

Old 03-12-2008, 12:02 PM
  #1  
sdonaghey
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Default Jack Stands on SubFrame Connector

Is it okay to put the jack stands on the subframe connector? I want to get some more room downthe center of the car, and just putting the stands on the front crossmember only give about 1-1/2 feet of space between them.

Also, what is the proper technique to getting all 4 wheels off without any problems? Which end should go up first. I have read someone that brought the rear up haf ay, then the front full, then the rear end to match. Does this sound right?

Thanks,

Sean
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Old 03-12-2008, 03:13 PM
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sdonaghey
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Default RE: Jack Stands on SubFrame Connector

anyone?
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Old 03-12-2008, 03:17 PM
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ajaibr
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Default RE: Jack Stands on SubFrame Connector

Ive jacked up cars from the front first, from the rear first, never given any thought to it and never seemed to make any difference... Ive put jack stands under the frame, rear end, control arms, subframe conns, you name it...
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Old 03-12-2008, 03:50 PM
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mhconley
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Default RE: Jack Stands on SubFrame Connector

ORIGINAL: ajaibr

Ive jacked up cars from the front first, from the rear first, never given any thought to it and never seemed to make any difference... Ive put jack stands under the frame, rear end, control arms, subframe conns, you name it...
+1

Always ensure your jack stands will support the weight you are putting on them... and I always leavemy hydraulicjack near where I am working under the car-not supporting anything -but just in case the jack stands fail. You can never be too safe when working under a car.

My dad had a grease pit put in his garage - unfortunately he's about a 14 hour drive from my house.

Martin
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Old 03-12-2008, 04:00 PM
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157dB
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Default RE: Jack Stands on SubFrame Connector

Here are the recommended jack points from Ford.
Notice how the rear end pumpkin is NOT one of them.

[IMG]local://upfiles/69445/33A5417CA6634CAF8D79AA64ABEB8E63.jpg[/IMG]
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Old 03-12-2008, 04:12 PM
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mhconley
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Default RE: Jack Stands on SubFrame Connector

ORIGINAL: 157db

Here are the recommended jack points from Ford.
Notice how the rear end pumpkin is NOT one of them.
I have yet to jack up my Mustang but the diff is one of the first places I would expect to be able toput a hydraulic jack. Would using it cause any damage? Why is it not recommended?

Martin
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Old 03-12-2008, 04:19 PM
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Default RE: Jack Stands on SubFrame Connector

ORIGINAL: mhconley

ORIGINAL: 157db

Here are the recommended jack points from Ford.
Notice how the rear end pumpkin is NOT one of them.
I have yet to jack up my Mustang but the diff is one of the first places I would expect to be able toput a hydrolic jack. Would using it cause any damage? Why is it not recommended?

Martin
Besides the cover getting damaged from misplacement of the floor jack,
the axle tubes are notaffixed goodenough to the pumpkin to support
the vehicle weight.
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Old 03-12-2008, 04:24 PM
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ajaibr
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Default RE: Jack Stands on SubFrame Connector

The axle tubes aren't affixed good enough to support the vehicle weight? I've never heard that one... LOL
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Old 03-12-2008, 04:33 PM
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GidyupGo
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Default RE: Jack Stands on SubFrame Connector

Think about it for a spell.
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Old 03-12-2008, 04:43 PM
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157dB
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Default RE: Jack Stands on SubFrame Connector

ORIGINAL: GidyupGo

Think about it for a spell.
My thoughts exactly. I was into the
response and by the time I posted
you had said the same thing.

ORIGINAL: ajaibr

The axle tubes aren't affixed good enough to support the vehicle weight? I've never heard that one... LOL
Stop and think about whats going on here.
Apply some mechanical physics to it.
The weight of the vehicle is normally
on the two springs that are way out towards
the ends of the axle tubes near the tires where
the weight is transfered to the ground. Not much
leverage there to effect the axle tubes where
they go into the pumpkin. Not take that weight
thats equally divided up between the two rear
tires and applyall of itto the center of the axle assembly
and there is a chance the axle tubes will bend down
under the load and greater mechanical advantage from
the spring mounts being so far out on the tubes.
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