I just replace the bearings and races on my 753 bobcat axles. The right rear was in bad shape. Now when I am using it and pull back on the right control it seems to grab and really react. Spin around. Generally this is at high throttle. I have retightened the chain bolts nothing was loose and check the hub bolts regular and retighten. I dont remember it being so reactive before I took it apart. I am not sure if this is something to worry about. Thanks. Jack