I have the same frame tractor as you, a
B2910, with loaded tires on the rear, and I can tell you that the 400+ lbs that the fluid adds is still not enough weight on the back for serious loader work.
A heavy box blade on the back is good ballast. Money well spent too...if you have any reason to want to work the dirt.
I have a cheap box blade that I pile concrete blocks on, so I generally end up with about 500 lbs on the 3PH. That plus the loaded tires seems to work fine. And the box is not too big, so it does not get in the way like the backhoe does sometimes.
You could also consider building your own 3PH ballast if you don't have need for a box blade. Some here have used plastic garbage cans as the form, with a home made internal support framework that gives the 3PH attach points.
There are several threads in the archives. A recent one posted by Spencer comes to mind...
Have you gotten any rear flats? I punctured my front tires within hours of the delivery of my
B2910 two years ago. I now have almost 500 hours on it, with no rear tire problems. The fronts are now foam filled...I decided if the rears punctured I would get them foam filled too, but would try liquid ballast first as foam would have cost about $250 per rear tire.
Anyway...thinking out of the box...you could always put WW fluid in the rears on top of the slime...this might negate the slime's ability to stop a leak, but it would give you extra weight where you want it, at minimal cost...just a thought... /forums/images/graemlins/smile.gif
