Dangerous car jacking with lumber. And the additional piece of lumber as a knee pad? And the...wheel chocks?
https://s3-us-west-1.amazonaws.com/h...ack_stands.jpg
Previously:
https://www.homemadetools.net/forum/...705#post133085
https://www.homemadetools.net/forum/...685#post132986
https://www.homemadetools.net/forum/...066#post120458
https://www.homemadetools.net/forum/...967#post112043