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I just installed a new drive belt on my Craftsman LT2000 (model: 247.288841) - not an easy job with the odd tensioner and variable speed pulley on this model. But, it's done and looks like everything is routed according to the diagram. However, this new belt is so thick and stiff, the tractor immediately starts moving forward when shifted into forward - no pedal push required. AND, there's no stopping it. The brakes aren't strong enough. I even cleaned and adjusted the brakes as tight as they can be and I still cannot stop. I even replaced the brake unit. The belt is a 954-0467A which is what it calls for. When I took off the old belt it seemed to me to be not as wide as the replacement. I figured it was just wear. The picture is in neutral with the engine off.

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interesting. I assume the picture is of the vari drive pulley? I've don't recall ever seeing that belt number for an MTD vari-drive . Is it the front or rear belt? Models I've had never had a 90 inch long belt for either front or rear.

ok edit here. I see that your's is the other style. I can only guess that there may be a belt adjustment procedure siimilar to the ones I've had. Also be sure to measure the belt if it's aftermarket. Chances are that it's shorter than spec. Been there many times.
 
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