My kids gator will hardly go in low it makes a horrible ratcheting sound sometimes i have to push it to get started also when turning it makes that ratchet sound

I f you are referring to the kids toy gator there is one nut on the front axle that can be loosened

first of all check for at least 12 volts from the battery and the charger, you can test this using a multimeter

I have a Ford F150 1989 When i start it, it makes a horrible grinding sound

remove the wheels & inspect the brakes as the pads or shoes are most likely worn out!
Cheers rob

I would say it is the clutch release bearing that needs replacing.

I would replace the reverse switch as seen in here http://www.shopjandl.com/mepu0003.html and also the high low switch for this peg perego gator.
Sometimes the high/low switch will cause it to not go in reverse, so I would replace both switches in the shifter just to make sure.
They are really easy to replace. You can call these guys http://www.shopjandl.com/.
They know what they are talking about because they sell and repair them.

Sometimes the levers go bad in the shifter, but I would first check the shifter to make sure the switches are engaging. You should also check the wiring on the motors in the rear. Sometimes they come loose and if they are not making a good contact the gator will not go in proper speeds.
You can get great help at http://www.shopjandl.com/mepu0002.html.
They have a toll free number and are very helpfull because the repair them as well.

a ratcheting sound generally indicates some object (wire of sorts) tried going down drain but cant make it out but motor not turning drum over is something else, to check drain remove lower cover and open pump cleanout also feel the rubber hose from bottom of tub to pump to see if a object is in it. take hose off pump to clean out hose. if this is older duet check nut on rear pulley and tighten..

It sounds like you need a pedal switch or it has a loose connection in the wires. It is a specific Peg Perego Switch that will fit under the foot pedal. I have a gator that was doing the same thing so i replaced the shifter switches and the foot pedal switch, but I bet you could start with just the foot pedal switch.
I bought mine at this website http://www.shopjandl.com/kids---baby-ride-on-toys-peg-perego.html but you could also call them as well.
Hope this helps

Sounds like the gears are stripped. If a bunch of teeth are missing, only the high speed gear will spin the gears fast enough to move the gator forward. I just bought a used one and found it pretty easy to tear apart and diagnose as similar issue. The gear boxes, located inboard of each wheel contain plastic gears and strip relatively easy if the shifter is moved , during motion from forward to reverse.