well.... for the powerwheels all i basically did was creat a frame from 1" square tubing and lawnmower parts (motor, tranny, tires, clutch system, spindles ect) and made it fit a powerwheels body. As for my mower in soltra since we can remake out front axles i refabricated mine to be indestructable out of 2-1/2" od/ 1/4" thick tubing. the spindles are 1/4" thick as well. its a bit heavier than i would of liked, but its has taken hits most front ends wouldent stand.
chack out my site for videos and pics. there is a video of the powerwheels on the "other" section of the movies.
www.extrememowers.comthanks