It was only like that for 10mins tops as I rolled "new" axle under to sit her back down on. And by the way I did have some logs just in front of the blocks as a back up if they broke cuz I had same thought. Now the logs were about 3inches shorter so she could have dropped 3inches but it worked. And before I took old axle out from under it it was sitting on the blocks like that while i took a lunch break. So I did somewhat test the strength of the blocks. But heck all mobile homes are sitting on blocks for years so why couldn't my truck sit on them for a hour or so.... was my thoughts.
But to make all of you feel better I do plan to make some heavy duty jack stands outta some 2in square tubing that slides in and out of some 2.5" squaretubing as the base and drill holes threw both tubes for some tractor pins to set the height of the jack stands. So for my future repairs I'll be a bit more safer then concrete blocks and firewood log jackstands.
