What size Allen wrench to loosen drain plug for changing transfer case oil on 96 Kodiak 400?

To loosen the drain plug for changing the transfer case oil on a 1996 Kodiak 400, you typically need a 10mm Allen wrench. However, it's always a good idea to double-check your specific model, as variations may exist. If you have access to the vehicle's service manual, it can provide the exact size needed.