so the rubber boot on the driveshaft right behing the engine on my rancher has a hole in it and needs to be replaced i am trying to get the swingarm off to get to it and dont no fer sure what is holding it on i got the little caps off and dont really no whats next i need a 15mm alan wrench but is it just a bolt or whats holding it on... and any tips or tricks will be hlepful...thanks