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Jacking points on a C4.

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Old May 22, 2009 | 04:20 PM
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Default Jacking points on a C4.

Somebody is always asking about where to raise a C4 with a floor jack.I was changing the oil and thought Id get a few pictures.I use the pinch weld in the frame,front and rear.The only problem with the rear is you need to watch for the E brake cables.I made these aluminum jack pads and then put some polyethylene plastic on that that.[IMG][/IMG][IMG][/IMG][IMG][/IMG]
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Old May 22, 2009 | 05:34 PM
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That's nice but it is overkill. After crawling under the car to place the floor jack in various locations, I finally just used the indicated places on the side. No problems. In fact, the front location can be used to lift both tires off the ground on that side. That makes switching wheels and tires easier.
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Old May 22, 2009 | 07:32 PM
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Does that lift the entire front end? And where are you putting the jack stands when you lift the front?

As I plan on pulling the knock sensor and oil cooler hoses on my 89 so I can do a coolant flush.

I didn't want to lift one side, then put a jack stand, then lift the other side, then put another jack stand.

I bought one of those low profile GM jacks with the light. I say it would be good to at least use a piece of wood inbetween the car and the jack pad? It so, how thick should it be and what type of wood?
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Old May 23, 2009 | 12:07 AM
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Originally Posted by Chatman
That's nice but it is overkill. After crawling under the car to place the floor jack in various locations, I finally just used the indicated places on the side. No problems. In fact, the front location can be used to lift both tires off the ground on that side. That makes switching wheels and tires easier.
Wheres the overkill?My cars got 12,000 on it.When I pull this jack out from under the car I have piece of mind knowing I didnt leave a mark on anything,some people care about that sort of thing,most dont.When I get the car in the air I find a solid place for the jack stands.if you think the pads on the jacks are over kill,you would love the pads for the jack standsI bought one of the G.M. floor jacks,total POS.
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Old May 23, 2009 | 12:18 AM
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I like those lifting pads - as the owner of a 1989 coupe with 4000 miles on it, I can appreciate it!
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Old May 23, 2009 | 12:27 AM
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Originally Posted by joshwilson3
Does that lift the entire front end? And where are you putting the jack stands when you lift the front?

As I plan on pulling the knock sensor and oil cooler hoses on my 89 so I can do a coolant flush.

I didn't want to lift one side, then put a jack stand, then lift the other side, then put another jack stand.

I bought one of those low profile GM jacks with the light. I say it would be good to at least use a piece of wood inbetween the car and the jack pad? It so, how thick should it be and what type of wood?
I drive up onto my Rhino ramps, then use my floor jack on the cross-member under the engine to jack it up higher to place my jack stands.
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Old May 23, 2009 | 12:46 AM
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Originally Posted by pianoguy
I drive up onto my Rhino ramps, then use my floor jack on the cross-member under the engine to jack it up higher to place my jack stands.
Where do you put the jack stands at? And do you put anything on top of the jack puck and jack stands like a piece of wood? I'm assuming from the above post that is used to keep from causing marks into the car.
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Old May 23, 2009 | 08:39 AM
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I put the jack stands on the pinch-welded section near the towing hooks. My floor jack has a rubber pad on it, but my stands don't. I would imagine it wouldn't be hard to glue some kind of thin rubber cushion to the stands. The only time I've used wood with a jack was when I jacked up the engine slightly to remove the balancer pulley - I used a 2x6 between the jack and the oil pan. Otherwise I don't think I'd recommend using something that isn't physically attached to the jack.
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Old May 23, 2009 | 10:05 AM
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Originally Posted by Chatman
That's nice but it is overkill. After crawling under the car to place the floor jack in various locations, I finally just used the indicated places on the side. No problems. In fact, the front location can be used to lift both tires off the ground on that side. That makes switching wheels and tires easier.
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Old May 23, 2009 | 04:01 PM
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Originally Posted by Scream And Fly
I like those lifting pads - as the owner of a 1989 coupe with 4000 miles on it, I can appreciate it!
Most will see this as overkill but the way I see it,why leave a mark on something if it wasnt there before.This is how I work on my car,at least my ZR-1.When I place a jack stand under the car I do the same with some aluminum blocks.Ive seen pictures of that 89,very nice.
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Old May 23, 2009 | 04:03 PM
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Originally Posted by pianoguy
Otherwise I don't think I'd recommend using something that isn't physically attached to the jack.
The aluminum pads I made have a 1/2 inch bolt thats about 4 inches long that goes in the hole in the jack.
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