what year is your trx250te? is it a 2002?
depending on the year, there is a lot of removal needed. you will need some deep sockets and 28-32 mm wrenches.
first you need to remove the wheels and rear hubs. i recommend draining the oil, so it does not drain out and make a mess. remove the locknut on the axle, and the rear brake drum assembly. there is a large locknut you will have to remove that has a circlip inside. after you remove the nuts(which will be very stuck) remove a small circlip too.
you might want to leave the brake drum on untill after you remove the dual locknut, so you can use the brake to hold the axle from spinning.
after the locknuts are removed, brake drum and rear hubs, the axle will slide out from the side.
the axle is a tight fit into the rear drive unit, so it might be a little difficlut to remove it
okay an 06 is a little different let me look at service book
please wait a few minutes
the ring gear and bearings will stay in the final drive unit. some bearings might come out with the axle, but they should stay in the rear unit. the axle will go out to the right side. so you want to push the axle to the right to remove it. the ring gear is attatched via splines and slides on and off. all the bearings stay in the rear drive unit, and to change the bearings you need to open the drive unit. same with the ring gear, the rear diff will need to be taken apart to change gears. you can change the oil seals with removal, but all other bearing and ring gear repair must have the rear diff removed.
the brake drum will also slide off the splines when the locknut is removed.
do you have a bad bearing or stripped splines??
why do you need to change the axle?
do you need to disasemble the rear final drive unit? you dont have to take that apart to remove the axle....
if you are going to disasemble the rear final drive you will have to remove it from the swingarm and remove the axle from the final drive unit.
are you trying to rebuild the rear final drive, or just remove the axle?