Fantastic, well this greasy pig lasted a 3 weeks before a major breakdown...looks like the center drive chain was loose enough to get off center and ride up on the sprocket ruining the teath and breaking it free from the axle?? Where can I find schematics for the Max II regarding drive config so I can order parts and positively Identify the broken/worn parts during the teardown process? To come up with the jargonI used above I downloaded the manual and found a small sketch on page 96 of the Max II/Buffalo truck manual..ut to explain it for those who are alot smarter than I its the sprocket that attaches small chain from upper jack shaft(driving) to the center wheel axle on the left side of the machine if sitting in it..hope this helps..thanks in advance!