Man, where were you when we were cutting ours! :-) having it cut I should say. First thing I'd do would be contact local shops that specialize in this, we have one in my town, I'll bet there is one somewhere by you. There are always people wanting to do the opposite, and get a 9" cut down.

That's a great resource you found. good luck. we had ours narrowed, in our 51' f1, I think 6" each side. then had to put new axles in.

what size are your tires?