</font><font color="blue" class="small">( Try this. 75% of what ever your plow weight is.)</font>
Hmm... my personal experience with a JD4300 with R4's is that the front blade weights about 500 lb., and I used to put up to 1000 lb. in the rear dirt scoop (which itself weighed a couple hundred or so I believe.) I've experimented with lots of different amounts of weight, by putting sand bags in the rear dirt scoop, and the best results *for me* were to go with lots of rear weight.
A bud just made me up a short top link, and another bud made me up a 55-gallon drum full of rebar and cement, with 3pt hitch points and all. (I got lucky in the friend department!)
Anyway, we estimate the drum to weight about 1200 lbs.. plus I hang a couple of suitcase weights on the front (all I can fit there with the blade mounted.) I think this will be perfect, based on my experiments over the last couple winters.
Only thing is, it's a bear to hook up! /forums/images/graemlins/grin.gif Gotta sit the thing on some 4x4's or something next time I take it off, so I can maybe wiggle it around a bit with a long bar.
HTH,
Bob
p.s. You know you have too much rear weight if the front end is light and you have more trouble than usual steering.