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I have a 99 Yamaha bear tracker and I have converted the front brakes from drum to disc fairly easy but I cant figure out how to convert the rear with out hacking apart the rear arm. tried to use parts from a wolverine since the rear arms look similar but the caliper mount didn't line up on the bear tracker axle. Can anyone give me any clues or has anyone successfully converted the bear tracker rear brakes. I would even purchase a conversion kit if there is one. Any help on this would be greatly appreciated.

I own a 1998 Yamaha Big Bear 350 4x2. It has hydraulic drum front brakes and mechanical single drum brake in rear. When I bought the quad a yr ago the brakes barely worked. I installed rebuild kit for brake master cylinder, replaced wheel cylinders up front, front/rear shoes, and replaced rear brake cable. The front brakes grab sort of ok now, but the rear barely grabs at all. On a side note; If I drive through any trails with muddy water, moisture is getting inside the drums. Worse in the rear drum. These drum brakes have never worked great. They slow me down but don't have enough bite to lock up the wheels. Now I have considered my drums may have worn thin, therefore causing the shoes to not make strong enough contact (???) I'm guessing. The front brakes are spooned out so they fit snug and they work just ok. The rears I have adjusted close to the maximum setting for the actuator arm. I read online about a Yamaha 1998 Big Bear 4x4 owner using a 2004 Big Bear 4x4 front disc brakes on it. He did have to dremel and drill out the lower ball joint to make new knuckles fit since the 04 knuckle has it's ball joint on bottom. It sounded cool and the owner claimed it stopped better. I'm considering a conversion, but it sounds expensive. I hate sinking $400+ worth of disc brake parts into a quad a bought for $500, and I already replaced the existing brake parts I previously listed. I'm just tired of my brakes working poorly and every time I get into some water on the trails the drums look like a septic tank inside the next day. I live in FL and this is the land of the Swamp. There is no avoiding mudholes and water. I would like some brakes that could survive any wet conditions. Any suggestions or helpful advice is appreciated.

I own a 1996 Kingquad 300. I am not a big fan of front drum brakes. Are there any disc brake kits out there (universal or specific) I can use with my ATV?