Fair enough Paul. I know that that works, but the it puts a hell of a strain on the jockey wheel, especially when your rear supports are at the back of the trailer.
18" .... hmmmm I thought that engine of yours was too big.
Fair point about the stifeners being in the way. I did mine with a new axel so was starting from scratch.
Brilliant idea time.
Use the stands to find the approx. axel position b4 moving the axel. I know the weight of the axel will skew this but it would give you a good starting point.
Jack up the wheel put the stands in front of the axel (in this case) and lower the wheel until the road wheel come off the deck. Check the weight.
It might work, or am I in a world of aeronautical swine?