Jackpoint Jack Stands
4/29/15, 08:11 AM
#21
Bullitt Member
Thread Starter
isn't it bad on the frame to lift the car one corner at a time? I just don't see how that doesn't put a lot of stress on the frame. That's why I lift with the crossmember in the front. Total pain in the *** though...have to drive up ramps, get a jack and jack it higher than the ramps, remove ramps, then remove wheels (if necessary)
4/29/15, 08:38 AM
#22
Shelby GT350 Member
That's when on the side of the road in an emergency situation. That doesn't make it ok to do regularly. Maybe I'm just being too paranoid. Doesn't the frame twist and only one side raises when you do this? I've never tried it.
4/29/15, 10:49 AM
#23
Legacy TMS Member
I think you're overthinking this. People have been lifting cars up that way for decades and I don't think I've ever heard of a problem like you're describing. I'm no engineer but would imagine the stress a chassis/frame takes from rough roads/potholes at speed is greater than the stress from a jack.
4/29/15, 11:36 AM
#24
Shelby GT350 Member
I think you're overthinking this. People have been lifting cars up that way for decades and I don't think I've ever heard of a problem like you're describing. I'm no engineer but would imagine the stress a chassis/frame takes from rough roads/potholes at speed is greater than the stress from a jack.
4/29/15, 04:46 PM
#25
Bullitt Member
Thread Starter
It is not hurting anything. The frames on these cars are so stiff that when lifting a rear tire high enough the front will start to come up. As has been said home mechanics, pro mechanics, tire shops, race mechanics, etc.. have been lifting cars like this for decades. Have done it with every car I have ever had, and i had quite a few. If I am going to swap summer/winter wheels I do it one corner at a time.
4/30/15, 06:14 AM
#26
Shelby GT350 Member
It is not hurting anything. The frames on these cars are so stiff that when lifting a rear tire high enough the front will start to come up. As has been said home mechanics, pro mechanics, tire shops, race mechanics, etc.. have been lifting cars like this for decades. Have done it with every car I have ever had, and i had quite a few. If I am going to swap summer/winter wheels I do it one corner at a time.
4/30/15, 08:04 AM
#27
Bullitt Member
Thread Starter
4/30/15, 12:34 PM
#29
Bullitt Member
Thread Starter
4/30/15, 01:06 PM
#31
Bullitt Member
Thread Starter
That is not the reason. Far from it. I know people have been doing it for years though. My 2012 STI owners manual said to use the pumpkin specifically. Ford tells us not to use it. Point is nothing will happen if you use the factory jack points and something could happen if you jack from center. I guess do whatever you feel comfortable with.
4/30/15, 09:13 PM
#32
Legacy TMS Member
No, it is the reason. The entire car sits on the axle, the car uses the axle to drive itself forward, the axle is centered and supported in every way. It's fairly safe, but there is an issue:
Jacking via the axle is an inherent safety risk, especially for the pumpkin area, because the car possibly can roll forward or back off the jack, or tilt side to side. They MUST tell you to not jack the car on the axle so as to cover their backsides from any liablity (aka: you didn't say *NOT* to...)
Because there are indeed people out there who would sue for that reason.
Again, IF you are safe about it, IF you do it right, then the axle is fine... it's just not as inherently stable as the pinch welds on the sides, nor a suspension mount (control arm or spring-to-body).
So let's consider a lift situation. You have the car in the air with a lift, you're putting on suspension pieces, say a sway bar, and you want to load the axle as if the car's on the ground to do it... how? Pole jack under the pumpkin! How else? Or two, one on either side.
The car *sits* on the axle. It's strong enough to jack it up. Ford just doesn't want a wayward lawsuit for NOT saying "don't" is all if it falls off that jack (because there's a whole lot of dumb out there, folks.)
Jacking via the axle is an inherent safety risk, especially for the pumpkin area, because the car possibly can roll forward or back off the jack, or tilt side to side. They MUST tell you to not jack the car on the axle so as to cover their backsides from any liablity (aka: you didn't say *NOT* to...)
Because there are indeed people out there who would sue for that reason.
Again, IF you are safe about it, IF you do it right, then the axle is fine... it's just not as inherently stable as the pinch welds on the sides, nor a suspension mount (control arm or spring-to-body).
So let's consider a lift situation. You have the car in the air with a lift, you're putting on suspension pieces, say a sway bar, and you want to load the axle as if the car's on the ground to do it... how? Pole jack under the pumpkin! How else? Or two, one on either side.
The car *sits* on the axle. It's strong enough to jack it up. Ford just doesn't want a wayward lawsuit for NOT saying "don't" is all if it falls off that jack (because there's a whole lot of dumb out there, folks.)
5/1/15, 01:13 AM
#33
https://themustangsource.com/forums/f669/safest-places-put-jack-stands-451433/#post5303988
5/1/15, 04:34 AM
#34
Bullitt Member
Thread Starter
No, it is the reason. The entire car sits on the axle, the car uses the axle to drive itself forward, the axle is centered and supported in every way. It's fairly safe, but there is an issue:
Jacking via the axle is an inherent safety risk, especially for the pumpkin area, because the car possibly can roll forward or back off the jack, or tilt side to side. They MUST tell you to not jack the car on the axle so as to cover their backsides from any liablity (aka: you didn't say *NOT* to...)
Because there are indeed people out there who would sue for that reason.
Again, IF you are safe about it, IF you do it right, then the axle is fine... it's just not as inherently stable as the pinch welds on the sides, nor a suspension mount (control arm or spring-to-body).
So let's consider a lift situation. You have the car in the air with a lift, you're putting on suspension pieces, say a sway bar, and you want to load the axle as if the car's on the ground to do it... how? Pole jack under the pumpkin! How else? Or two, one on either side.
The car *sits* on the axle. It's strong enough to jack it up. Ford just doesn't want a wayward lawsuit for NOT saying "don't" is all if it falls off that jack (because there's a whole lot of dumb out there, folks.)
Jacking via the axle is an inherent safety risk, especially for the pumpkin area, because the car possibly can roll forward or back off the jack, or tilt side to side. They MUST tell you to not jack the car on the axle so as to cover their backsides from any liablity (aka: you didn't say *NOT* to...)
Because there are indeed people out there who would sue for that reason.
Again, IF you are safe about it, IF you do it right, then the axle is fine... it's just not as inherently stable as the pinch welds on the sides, nor a suspension mount (control arm or spring-to-body).
So let's consider a lift situation. You have the car in the air with a lift, you're putting on suspension pieces, say a sway bar, and you want to load the axle as if the car's on the ground to do it... how? Pole jack under the pumpkin! How else? Or two, one on either side.
The car *sits* on the axle. It's strong enough to jack it up. Ford just doesn't want a wayward lawsuit for NOT saying "don't" is all if it falls off that jack (because there's a whole lot of dumb out there, folks.)
5/1/15, 06:15 AM
#36
Shelby GT350 Member
5/1/15, 05:14 PM
#37
Bullitt Member
Thread Starter
Last edited by imeyers302; 5/1/15 at 05:20 PM.
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