What hold the steering column to the john deer perego tractor and makes it turn

SOURCE: do I need to replace all tires on peg perego john deere

Hi!
On these, only the 2 rear wheels are the gear wheels. You will just need to replace the tires on those with the rubber ones if you choose to go that way.  Good luck!

SOURCE: replace parts on ride-on toys

The gearboxes for both hummers and peg perego gators are under the back seat.
If you hear a clicking noise It is definatly the gearbox on the gator. The hummer gearboxes sometimes come loose from the motors, so it may be as simple as tightning the motor gearbox.
Here is how you take the gearboxes out from the gator.
1. disconnect battery
2. take hinge pins out from the dump bed to access the green cover plate.
3. take a flathead screwdriver and pry around the plastic cover to expose the gearboxes.
4. take the rear wheels off and remove the rear axle.
remove the motor gearboxes (they are interchangeable)
5. install the new gearboxes making sure the wires are secure and the wheels are going in the correct direction.
6. put back together.
7. hook up battery and your good to go!
If you have any problems are questions you can contact these guys at http://www.shopjandl.com/kids---baby-ride-on-toys-peg-perego-switches-and-shifters.html.
They have a toll-free number and are very smart when it comes to these peg perego ride on toys.

SOURCE: my sons peg perego john deere jeep only sets off

I would get the Peg Perego Gator Shifter Assembly from http://www.shopjandl.com/
Make sure the wires are secure on both motors in the back.
One time I had the same problem and I had loose wires on the motor, but I ended up replacing the switch assembly later because it would only work in 1st gear.
Hope this helps

SOURCE: Peg Perego John Deere tractor 12volt will only

check all wre connections are not dirty or loose!
lift out pedal swith to check there too!
Cheeers Rob

SOURCE: battery is charged but car is still not working,

I have the switch go bad on the gas pedal. You can find a replacement here http://tigerimports.net/sunshop/