C4 Jack Point
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Cruising
Joined: Jun 2012
Posts: 11
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C4 Jack Point
On my 1984 C4 I was wondering about jacking it up. It looks like using the stock jack in-between the locator triangles will be pushing up on fiberglass. Is this correct? Or is there another jack point?
Melting Slicks
Joined: Mar 2008
Posts: 2,351
Likes: 222
From: Delta B.C. Canada
2023 C7 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (appearance mods)
2015 C4 of Year Finalist
That is the correct lift point. There is structural metal right behind the plastic. Use a flat plate on your jack, rather than the "cup" type. You don't want to pinch a brake or fuel line.
Melting Slicks
Joined: Mar 2008
Posts: 2,351
Likes: 222
From: Delta B.C. Canada
2023 C7 of the Year Finalist - Unmodified
2019 C4 of Year Finalist (appearance mods)
2015 C4 of Year Finalist
The plastic should not be more than about 1/8" lower than the metal behind it, so it will deflect a bit. If yours is much different, you'll need to figure out why.
Alternatively, you can place your floor jack further forward and inboard (at the front) so that if lifts against the curved part of the frame. At the rear, look for a similar curved area of the frame.
Alternatively, you can place your floor jack further forward and inboard (at the front) so that if lifts against the curved part of the frame. At the rear, look for a similar curved area of the frame.
Racer
Joined: Dec 2009
Posts: 404
Likes: 1
From: roscoe il.
Race Director
Joined: Dec 2003
Posts: 14,137
Likes: 935
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
When you destroy the rocker panel because you dont have enough common sense to get down and look for the -CORRECT- jacking point,I have a new rocker panel I can sell.The pinch weld runs the entire length of the frame.
Instructor
Joined: Feb 2012
Posts: 187
Likes: 1
From: Rockford Michigan
Do a search on here and you'll find pictures that will help you, also suggest buying the FSM. You can also search YouTube for just about anything on our Vettes. Have fun with the new toy!!!
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
...or the guy who never did autocross tech inspection before jacks in the wrong place and breaks it. I'm talking with the tech inspector and I hear this "CRACK!" and look up to see this guy on the other side of my car holding the jack handle with this "Oopsie" look on his face. Oh well. Too late and no point in yelling at him for his ignorance, so I went around the car and pointed out the jacking triangles. He said he had a C3 and never jacked a C4 before. He didn't want to touch my car after that, so I jacked it myself...
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Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Do not contact the fiberglass or any brake or fuel lines. Look underneath the car and you will see the frame right behind the fiberglass and the triangle on the rocker. Run your hand on the other side of the frame to check where the brake/fuel lines are. Use a pad or flat plate as suggested. It isnt rocket science look at the underside and you will see whats up.
Le Mans Master
Joined: Jul 2004
Posts: 6,227
Likes: 697
From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
The plastic should not be more than about 1/8" lower than the metal behind it, so it will deflect a bit. If yours is much different, you'll need to figure out why.
Alternatively, you can place your floor jack further forward and inboard (at the front) so that if lifts against the curved part of the frame. At the rear, look for a similar curved area of the frame.
Alternatively, you can place your floor jack further forward and inboard (at the front) so that if lifts against the curved part of the frame. At the rear, look for a similar curved area of the frame.
Le Mans Master
Joined: Jul 2004
Posts: 6,227
Likes: 697
From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
...or the guy who never did autocross tech inspection before jacks in the wrong place and breaks it. I'm talking with the tech inspector and I hear this "CRACK!" and look up to see this guy on the other side of my car holding the jack handle with this "Oopsie" look on his face. Oh well. Too late and no point in yelling at him for his ignorance, so I went around the car and pointed out the jacking triangles. He said he had a C3 and never jacked a C4 before. He didn't want to touch my car after that, so I jacked it myself...
Race Director
Joined: Dec 2003
Posts: 14,137
Likes: 935
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
