Jack Stands Question
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.
Instructor
Joined: Dec 2007
Posts: 218
Likes: 53
From: RI
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.
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
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
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Last edited by GCG; May 30, 2012 at 06:01 PM.
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.
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.
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.
Note don't put the jack stands directly against the cradle, always use some buffer.
Le Mans Master
Joined: Nov 2005
Posts: 5,403
Likes: 31
From: Allentown PA & Elk Twp NJ HPDE Addict
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.
Thread Starter
Race Director
Joined: Jul 2008
Posts: 17,769
Likes: 3,697
From: The Sunshine State
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
C7 of the Year - Modified Finalist 2021
Finalist 2020 C7 of the Year -- Modified
2020 C5 of the Year Finalist - Modified
C5 of Year Finalist (appearance mods) 2019
2018 C5 of Year Finalist
available at summit racing
http://www.summitracing.com/search/B.../?autoview=SKU
Has anyone made one of these?
http://www.summitracing.com/search/B.../?autoview=SKU
Has anyone made one of these?
Also, can you position jack stands underneath this cross beam floor jack adapter once the car is lifted?
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Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
