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Jacking-up a C4

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Old Feb 19, 2012 | 04:38 PM
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Default Jacking-up a C4

I just ran a search for a floor-jack adaptor for my '89 C4. The Gadgetman came-up as a source, but the website is apparently down.

Any other options for a floor jack adaptor for the rear-end? Just purchased a low-profile jack from HF, but need some way to get the entire rear of the car raised evenly.

Thanks!!

mb
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Old Feb 19, 2012 | 04:56 PM
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Fastest way to jack up a C4....
http://forums.corvetteforum.com/c4-g...-in-swamp.html


Seriously, I know the adapter you're talking about (and I think it was the Gadgetman who made it). Let me see if I can remember what it's called.....


FWIW, if you can get to the pumpkin with a floor jack, use a block of wood. I've jacked on the pumpkin but I don't have the pipes in the rear to deal with. How about a 2x4 with "legs" to stradle any piping?

Last edited by GREGGPENN; Feb 19, 2012 at 05:00 PM.
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Old Feb 19, 2012 | 08:06 PM
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Jack it up like any other car and throw some jack stands under it.




It was high enough in this picture to get the exhaust and rear end out with plenty of room to spare.

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Old Feb 19, 2012 | 08:53 PM
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Old Feb 19, 2012 | 09:12 PM
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Last edited by PLRX; Feb 19, 2012 at 09:15 PM.
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Old Feb 19, 2012 | 10:10 PM
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Wow! Got O.C.?

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Old Feb 20, 2012 | 07:36 AM
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I know I will get beat up for this but: I have jacked the rear of my car many times by placing a 2X4 on the jack and placing it under the exhaust pipes under the pumpkin. I don't have a single mark or dent on the pipes. With that being said , If I had the adapt a jack I would use it.
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Old Feb 20, 2012 | 08:16 AM
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I have a "Jack-A-Vette" but I don't think it's made anymore.
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Old Feb 20, 2012 | 11:53 AM
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Originally Posted by PAINTER MAN
I know I will get beat up for this but: I have jacked the rear of my car many times by placing a 2X4 on the jack and placing it under the exhaust pipes under the pumpkin. I don't have a single mark or dent on the pipes. With that being said , If I had the adapt a jack I would use it.
Wow!....I'm not sure which is more surprising:
That you tried jacking the rear by the pipes --or--
That they don't crush/collapse under the weight!
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Old Feb 20, 2012 | 01:19 PM
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Originally Posted by GREGGPENN
Fastest way to jack up a C4....
http://forums.corvetteforum.com/c4-g...-in-swamp.html


Seriously, I know the adapter you're talking about (and I think it was the Gadgetman who made it). Let me see if I can remember what it's called.....


FWIW, if you can get to the pumpkin with a floor jack, use a block of wood. I've jacked on the pumpkin but I don't have the pipes in the rear to deal with. How about a 2x4 with "legs" to stradle any piping?
"2x4 with "legs" to stradle any piping? " Sounds a little, you know what I mean but could you explain your ide a little more ?
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Old Feb 20, 2012 | 02:01 PM
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Originally Posted by red rock
"2x4 with "legs" to stradle any piping? " Sounds a little, you know what I mean but could you explain your ide a little more ?
I don't have a stock vette to look at anymore, but can you make a 2x4 box that wraps around the exhaust? If pipes wouldn't collapse, 2x4 wood would lift it.

I picture something like a piece to sit under the pumpkin, two "feet" that drop below the pipes, and another piece to connect those legs?

If not, maybe you can use a 5-6" piece to go up thru the exhaust -- like the tool pictured by Mr. Mojo?

IOW, get creative.

How about a 2x4 with arms to reach up to the axle? Maybe even double-thick for strength? Cut "V" shape in arms to pick up the axle.

Keep thinking....
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Old Feb 20, 2012 | 03:25 PM
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Here you go....
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C4 - Jacking points.pdf (787.1 KB, 607 views)
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Old Feb 20, 2012 | 04:33 PM
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Just don't jack directly on the "jacking location" thing. Look under ther car and make sure that you are on the frame.
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Old Feb 21, 2012 | 06:09 PM
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I think this might be what you are looking for.

http://www.zr1specialist.com/HAT%20W.../C4%20Lift.htm

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Old Feb 21, 2012 | 06:29 PM
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Here is a link to the Gadgetman adapter:
http://www.corvettegadgetman.com/products3.html

It's pretty easy to fabricate one. The part you don't see is the round pipe welded to the bottom that slides into the hole in your floor jack. I made an adapter out of some 1x3 rectangular box steel, with a top and bottom plate, and the pipe on the bottom. If you don't have a welder, someone should be able to make one up for you for not too much money.
A piece of wood resting on your floor jack is not safe IMHO.
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