How to tame a direwolf:

1. You might need a trap. Build a 5 by 5 foundation and use doorframes as walls. Make it 2 doorframes high. Then use ramps so you can walk into the trap and lead the direwolf with you.

2. After the direwolf is in the trap, shoot it with a tranquilizing ammo like tranq arrows or certain darts.

3. After it's knocked out, feed it meat or preferred kibbles.

-You don't need a saddle to mount them.

Hope this helps!

-Pablo27