for some reason i install the sprockets on the new axles for the attex, and the sprocket for the middle passenger axle does not line up with the t-20 AND the front axle the same time. it's supposedly all the original sprockets, but i don't imagine the attex was made with a sprocket offset an inch or so from the t-20 output...unless that's why they added that adjustable idler/sprocket on the back...any ideas?