Wheel cribs and race ramps suggestions

The kids old swing set is going to magically transform into wheel cribs like Woody's shows. might have to buy some extra material to get the height I want but there are four 4x4s and a 4x6 there. I've got a 6000 lb mid-rise scissor lift under the car and my evil plan is to get it up 2-3 feet, set it on the cribs and then pull the lift out so I can access the middle. May use a sheet of plywood over the lift instead. We'll see.

As promised. The swing set provided enough material to do one pair and then I had to hit the store for the $50 worth of wood and screws to do the second set. They can be used either three or five 4x4's high depending on need. The long stacked 2x10s are required for the exhaust to clear the lift. You drive up and park on the boards, then you can lift the car. Get it high enough and put the cribs under the wheels and lower the car. It it as stable as when the car is on the lift. I can lay a piece of cardboard or plywood down and get to anything under the car. With the cribs stacked on top of the runners, the tires are 30" off the floor. I wouldn't try to achieve this height using a floor jack to lift. I think I will probably use it most with the first level, this is almost too high to reach some things from your back. For the record, using 4x4's complicated construction and 2x4's are the way to go.

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