Hi all I am new to the forumn. I found it while searching for atv answers. My foreman started to make a funny noise while camping over the weekend. When I put it into gear whether forward or reverse it makes a chirping or high pitched tinking sound. It does it again as a load is applied to the motor after as the torque starts turning the tires the noise doesn't contiue until I stop and either start again or shift from neutral to first gear or reverse. I honestly thought it was an exhaust leak that was whistling. However after closer examination I have determing the noise to be coming from the rear end. I had to have honda rebuild the differential in 08. The pinion nut had come loose and I didn't have time to even attempt to fix it. I am almost wondering if it's the pinion joint that connects to the rear drive shaft or the ringgear clanking against the rear axle. Thanks in advance for any help or pointers.