I have a John Deere L110 when I push the free wheel rod in, it does not engage the drive. I can press the forward or reverse pedals and the rear wheels do nothing.

Hi,
Assuming you have not had a rear wheel off, then look in by the right rear wheel to see if the belt is on the transmission sheave. The bolt that hold on the belt guide is also on that side. If that is not it, check idlers and park brake release.
Peace,
Clarke