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I built the link larger in relation to the rest of the truck.
On the actual system, the lower rear pivot is a bit lower, giving it more reach.
The lower mount of the front hydraulic cylinder is actually lower too, which give the system a little head start on the front cylinder link's rotating movement.
The next page will show a traced picture of actual system.
The goals I had in mind when I designed this system was:
To keep the payload as close to the cab as possible.
The end result was 6" from the back of the cab.
To keep the frame short as possible, with the least amount of rear overhang as possible.
I kept it less than a foot. But it can be even shorter.
To keep the payload as low as possible.
Less than 4" in height was added.
(In actually, I only gained 2 or 3" from the standard height and I could do much less if I built my own truck chassis frame.)