I’ve been spinning the nuts but not making any progress and then I noticed the bolts have allen wrench sockets. Do I need to secure the bolt with an allen wrench while wrenching the nut off?

I was hoping to remove the sway bar without removing the wheels but it looks like that isn’t possible. Are there any tips for this? I should get the service manual. This is for a 2016 Grizzly.

I’ve been spinning the nuts but not making any progress and then I noticed the bolts have allen wrench sockets. Do I need to secure the bolt with an allen wrench while wrenching the nut off?

I was hoping to remove the sway bar without removing the wheels but it looks like that isn’t possible. Are there any tips for this? I should get the service manual. This is for a 2016 Grizzly.