I am replacing the wheels on a john deere gator. Is there a trick to getting the wheels off and putting the new ones on. I thought I'd ask before I tried.

SOURCE: old john deere gator and battery new charger still will not move

Could be several things.  Your battery could be bad. After not being charged for a while, they do go bad- often. You may want to try a new battery along with your new charger.  You could also have a switch /connection problem. If you get a new battery and it still doesnt work, you may want to check the switches and wiring. It is not uncommon for the switch to go bad especially if it had been stored outside. 

SOURCE: Rear wheels-

Both wheels should spin in 2nd gear. Only one wheel may spin in 1st, but if you put a little pressure on the one wheel that spins it should make the other wheel start spinning.
But both wheels should spin in high gear at the same time.
Hope this helps. If there is more help you can also ask these guys at this website. http://www.shopjandl.com/ I get my parts from them and they seem to also work on them as well

SOURCE: John Deere Gator 4x2 - Left Wheel doesn't move when in 2nd gear

I would replace the high/low switch and the reverse switch. One time a replaced the high/low switch and the reverse switch quit on me 2 weeks later.
You can also get the Peg Perego Gator Shifter that upgrades the vehicle.
You can get the parts and repair help at this site
http://www.shopjandl.com/kids---baby-ride-on-toys-peg-perego-switches-and-shifters.html
They have helped me several times.
Hope this helps

SOURCE: John Deere Gator not responding with new battery.

I upgraded my Peg Perego shifter and it came with the wiring harness.
I bought it at http://www.shopjandl.com/
Hope this helps.

SOURCE: help for my childs John Deer Gator

the peg perego gators have two switches in the shifter that need replaced.
I have replaced them before on my grandkid's gator.
Here is the website I get my parts from
http://www.shopjandl.com/kids---baby-ride-on-toys-peg-perego.html
You can also call them direct at 1.801.655.0800.
They seem to always know which part I need and I have always been very happy with their service.
Hope this helps