ok i got this buggy thats 4wd and iwanna convert it to 2wd should it be rear wheel or front whell and should i lock diffs and how?

Take off the axle going to the front wheels and yes, lock the diffs.

ok isnt the diffs the ones in the middle that make both bones smin and how do i lock them?

Remove front/center drive shaft. Open the center diff, clean it out and stuff it full of clay or silly putty. Make sure all the gears in the diff are frozen(locked) and seal it back up.

cant i just no use the front diff

nope, if you don't lock the center you won't go anywhere without 4wd

Remove the center dog bones which connects the front diff and lock the center diff by packing it with JB Weld epoxy, install the spur gear and let it dry overnight and you are good to go. Good luck in removing the hard epoxy.

[:'(]

ok i lost! ok so theres the center diff where 2 dog bones comes out 1 to the front and the other the back. i take the fornt dog bone out now i can run it 2 wd. Right?

No, you need to take the diff apart and lock the gears inside with putty or something to prevent it to turn the front shaft, then install it with the rear shaft only, then you will have a 2wd buggy.

nope then it would just try to send power to the front.