</font><font color="blue" class="small">( Not while the rear wheels and the bucket are both in the air... /forums/images/graemlins/shocked.gif in that position the load will increase as the front axle becomes the fulcrum.
As long as the wheels are on the ground the wheel weights do not exert any load on the axles front or rear /forums/images/graemlins/confused.gif (or is that what you were saying? )</font>
Not quite what I was saying, but actually does augment both my whimisical scenario and the larger one here. You are right, the entire weight of the tractor and bucket load solely on the front axel is the most weight you can put on it (without artificially loading it); I just added the whimsical scenario of the bucket then making contact with the ground and sharing some of the weight (true enough, that would be after eveything was pivoting on the front for a few scary seconds).
Actually my point is that if you load the bucket right until the tractor starts to tip, both the weight of the tractor and the bucket load are all on the front axel. Now if you add 1lb, 100lb, or 1000lb to the rear axel, so it won't tip, the same stress is still on the front, but 1000lb added weight will exert 999lb more [than 1lb added weight] through the rear tires to the ground - while the exact equivalant weight of the tractor and bucket load is still on the front axel. So what I was saying is that the tractor lifting from the ground, or having the same load not lift the rear because of wheelweights makes no difference to the front axel. Getting back to the whimsical side of this extreme scenario, with no weight being transferred to the ground, you can't go anywhere, so still less wear to the front end (not to mention the dynamic loads it doesn't have to deal with since you're stationary /forums/images/graemlins/grin.gif )