Jack Stands Question

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May 29, 2012 | 09:54 AM

#21

IRON MAIDEN

Melting Slicks

Joined: Aug 2009

Posts: 2,785

Likes: 8

From: Sacramento California

I've tried it both ways and I perfer a piece that runs the length of the crossmember. When I tried it with blocks on each end and a long board under that, the longer board started to flex in the middle where there was no support so I let it back down and switch it. Better safe than sorry. I like that Summit one, looks like what I was talking about but the one I saw was homemade and not adjustable.

May 29, 2012 | 02:42 PM

#22

photonhunter

Instructor

Joined: Dec 2007

Posts: 218

Likes: 53

From: RI

Quote:

Originally Posted by RetiredSFC 97

..... It flexed some but it didn't crack or even act like it was going to. Treated boards offer added strength as well....

Just the opposite is true.
The treating process doesn't add strength to a piece of wood. It just makes the wood less tasty to insects and more resistant to rot.
Of a greater concern is the fact that treated wood is usually made from Southern Yellow Pine, one of the cruddiest woods around. It's prone to checking and cracking unlike the woods used for framing lumber such as hemlock and fir.
If you want a strong wood, look for a hard wood like oak, maple, cherry, etc.
If you want to use a 'soft' wood like fir, hemlock, etc., then look for something without knots, straight-grained, or quartersawn (if you can find it).

dan k.

May 29, 2012 | 11:30 PM

#23

OkieBikerDude

Pro

Joined: Sep 2009

Posts: 671

Likes: 10

From: Tulsa OK

I use a 2"X6"X25" on the front and a 26" piece on the rear. I've glued and screwed a 6"X6" piece of 3/4" plywood on each end to put the load on the ends of the 2"X6" and to prevent possible splitting.

I like the look of the metal pieces; However it looks like it would necessary to get each end of the car about 6" off of the ground to get the jack in place. My wooden pieces work with 3" ramps under each wheel.

Good luck.

OBD

May 30, 2012 | 05:55 PM

#24

GCG

Melting Slicks

Joined: Jan 2009

Posts: 3,275

Likes: 739

From: Miami FL

Quote:

Originally Posted by OkieBikerDude

...I like the look of the metal pieces; However it looks like it would necessary to get each end of the car about 6" off of the ground to get the jack in place. My wooden pieces work with 3" ramps under each wheel...

Using this combination, it is just plug and play. The jack is the ATD-7325 (same one as the Omega 29023, just under a different badge)

Last edited by GCG; May 30, 2012 at 06:01 PM.

May 30, 2012 | 06:41 PM

#25

chevy406

Tech Contributor

Joined: Sep 2005

Posts: 1,731

Likes: 82

From: New Market AL

Do you honestly think the cross member is going to bend due to jacking it up in the middle?

I've worked on 10+ C5s and never bent a cross member yet. But by all means, go to what ever level you want in order to feel comfortable working on your cars.

This was how my car spent 6 weeks this spring while rebuilding the engine. Not a lot of wood used in that little effort.

Last edited by chevy406; May 30, 2012 at 06:43 PM.

May 30, 2012 | 07:02 PM

#26

Jet-Jock

Race Director

Joined: Aug 2003

Posts: 13,421

Likes: 8

From: Lake Mary Florida

2x6x16 pressured treated lumber is what I used. Once up on the low profile jack the stands are slide into place under the board.

Note don't put the jack stands directly against the cradle, always use some buffer.

May 30, 2012 | 09:05 PM

#27

spdislife

Le Mans Master

Joined: Nov 2005

Posts: 5,403

Likes: 31

From: Allentown PA & Elk Twp NJ HPDE Addict

Quote:

Originally Posted by chevy406

I've jacked my car dozens of times in the center of the crossmember no with no issues. I wonder what some people would think when they see the entire side of the car off the ground when I jack it on the frame rail to do a rotor change at the track. Never had an issue and never will.

Jun 5, 2012 | 09:20 PM

#28

MSG C5

Thread Starter

Race Director

Joined: Jul 2008

Posts: 17,744

Likes: 3,671

From: The Sunshine State

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Quote:

Originally Posted by 2004c5blackcoupe

available at summit racing

http://www.summitracing.com/search/B.../?autoview=SKU

Has anyone made one of these?

The site indicates that the starting width is 27". Is that too wide based on the 26" rear width provideded earlier?

Also, can you position jack stands underneath this cross beam floor jack adapter once the car is lifted?