Glad it helps.I ended up making my tractor predator proof and it was too heavy to roll on sloped land. I can still use it to house excess cockerels so it wasn't a total loss Lol
You will get better results if you use pressure treated 2 x 6's instead of 2 x 4's for axles and levers for the wheels .Softwood has too much give and the wheels won't roll as well .Hope this helps!
The type I made for my chicken tractor requires little effort to raise or lower.Pressing the 1st lever down with my foot lowers or raises the axle and engages or disengages the wheels. The 2nd lever locks it in place for rolling.Unfortunately I had to reset my computer so I don't have any...