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Jo, Its a home made unit there have been several posts on the forums about them. 1/2 inch plywood 12" X 12" X 12" with 2X4 internal frame. I don't have a picture of ours its still in dads truck in Idaho, but they are in the dent link https://www.ford-trucks.com/forums/1...ht=jack+stands on the second page. Ours has a square frame on top of the vertical supports and handles cut into the sides.
Don't believe it has been on the Bump or Slicks forum and I don't read the Dent. Glad your dad has found a place to store the box. I think I will stick to the trolly jack, as I believe with a flat tire you could not get the box under the truck.
With a standard pick up I'm pretty sure you're right, but Dad's Truck (well mine now I guess) is a 1-ton dually with an Omaha Standard Stock bed on it. There were times that we had to use the jack on the bed corners or frame. The jack is a 10 Ton stubby bottle jack. fully extended I think it was only 16". Never seemed to fail that we'd get the flat's on one of the rear duals, normally the inner, and always while loaded ! Hauling cows or horses on the old two tracks off of the ranch or in the mountains was interesting to say the least!
With a standard pick up I'm pretty sure you're right, but Dad's Truck (well mine now I guess) is a 1-ton dually with an Omaha Standard Stock bed on it. There were times that we had to use the jack on the bed corners or frame. The jack is a 10 Ton stubby bottle jack. fully extended I think it was only 16". Never seemed to fail that we'd get the flat's on one of the rear duals, normally the inner, and always while loaded ! Hauling cows or horses on the old two tracks off of the ranch or in the mountains was interesting to say the least!
Make sure you keep the Same brand AND Series of tires next to each other on those duallys. That is why they wear differently and one blows. Most people don't know tire sizes are not Industry Standard. They are "close" but not exect between tire manufacturers or even series of tire. They are actually the Manufacturer comparing their own tires between themselves. As an example, let's pick numbers out of the air and say a Firestone and a Goodyear might have the same advertised size but they are 3% different in height. There's where the wear and blowing out occur.
Yeah we always put them on by pairs, right rear left rear then fronts. The killer was the two track, made by standard trucks and carved down from 4-6 inches, the rocks at the sides were always cutting the sidewalls open. No matter how you tried, you could never seem to ride the duals on each edge, and when they dropped in it was always the outside carrying the weight and the inside catching the rim. sharp rock and bang! Volcanic rock is a PITA! and the not so decomposed granite from where we hunted wasn't much better! Of course WHERE we went required the stock truck. there is no turning a pickup and trailer around on some of those old forest roads!!