<font color=blue>several things you are missing, the biggest part is that the soil type is propably different </font color=blue>
Nope, I didn't miss anything. Type of soil, moisture content, whether there are rocks, etc. will certainly affect the quality of work the tiller does, speed at which you travel, and number of passes required to get the the quality you want. It does not affect my opinion that nearly everyone will be happier with a tiller as wide as their rear tires.
<font color=blue>The tires of the tractor was even going in revrse trying to hold the tiller pushing the tractor</font color=blue>
???OK. That I'd love to see./w3tcompact/icons/laugh.gif I've run my tiller on dry clay that was so hard it only scratched the surface. The tiller can bounce up and down, get noisy, etc. and I don't like it and don't do it much. But as far as pushing the tractor . . . well, I'd heard of that so I did quite a bit of experimenting with a 40" tiller on a B7100 (tiller the same width as the rear tires). If I put the tractor in neutral, the tiller would push it forward (but since tractors are equipped with brakes - certainly no danger), with the tractor in high range, 2WD, the tiller could push the tractor forward intermittently depending on the condition of the ground, and in low range, 4WD, it wouldn't push it forward at all. Now I have a B2710 and the same tiller offset to cover my rear track. I till in mid-range, 2WD, and the tiller does not push the tractor forward, so I tried high range and it still does not push the tractor forward in the garden, but I haven't tried it on other terrain, as I did with the B7100. So I'm serious in that I'd really like to see what you did.
<font color=blue>the biggest problem is the stress you are putting on the tractors three point system by over weight</font color=blue>
I never said to get an overweight tiller; I said to get one as wide as, or the next size wider than, your rear tires. Now I don't know how you till, or whether you do, but I lower my 3-point all the way (float) so the 3-point is carrying no weight while tilling. The weight concern is for lifting and transporting the tiller, and if it's excessively heavy, the front end of the tractor may be light and cause a steering problem (easily corrected with front weights or by leaving the FEL on the tractor). Certainly, you could put too much weight on any 3-point, but I don't know of a tiller of the size I recommended that would be too heavy for the 3-point. Obviously, we're talking about different size tillers for different size tractors, and any tiller I've seen that was no more than a foot or so wider than the tractor's rear tires would not be too heavy (and I'll admit I haven't seen every tiller in the world so maybe such a tiller exists).
<font color=blue>You say you used the tiller for four years</font color=blue>
A little over four years on a B7100 and now more than 2 years on a B2710. Since the B2710 has an outside rear tread width of about 54 inches, I wish I had a 54" to 62" tiller now, but since this one still works very well, I just won't spend the money to buy another one.
<font color=blue>how many acreas did you till in that period that was not yours</font color=blue>
I have no idea. Besides my current garden of about 9,000 sq. ft., I've also regularly tilled a neighbor's garden that is slightly smaller. Another neighbor had a bull dozer come in and remove a bunch of big cedar trees from his yard, and then had two truckloads of sandy loam dumped in the yard. I spread that dirt, tilled it in, leveled, etc. I sure tilled up a lot of tree roots and sometimes the tiller bounced pretty bad on them. I don't like that, but I've never had any damage or a single repair to the tiller. I've also tilled my brother-in-law's garden (he had lots of smooth round rocks that I don't have), and I had a neighbor hire me to till all around a house he had just bought and unknown to either of us there was a brick sidewalk under about an inch of dirt. I tilled up a lot of bricks. Four other neighbors have hired me to till their gardens, and I don't know how much tilling I've done at my brother's place. After we removed the old willow trees from a dried up pond, I tilled the whole bottom of the pond (more tree roots). And I've used the tiller many times just to break up hard dry clay so when I moved it to where I wanted it with the FEL, I could spread it easier. Now the tines on my tiller definitely show some wear/w3tcompact/icons/laugh.gif, but nothing has ever broken. On one single heavy clay garden that was far too wet, I was able to bog the tractor down and had to raise the tiller slightly to keep from stalling the engine on the B7100, but that was only in one little corner of one garden one day.
Now of course, I've either used or watched some other tillers in operation. A former next door neighbor had one (I don't remember the size, but it was definitely wider than his rear tires) and my cousin uses a 62" tiller on his TC29D, and one fellow in the area has a really big tiller behind his big John Deere (I don't remember the size for sure but think he said it was 8').
<font color=blue>What size does the tractor manual suggest for a tiller. Why do you think they may suggest a certain size</font color=blue>
I suppose I assume (and know that will be wrong at times) that people have read their manual, and if they want to go strictly by the manual, then there would be no reason to ask on this or any other forum. I know that Kubota manuals are quite conservative, and so does my Kubota dealer from whom I bought the tiller. Of course, one reason is because they know a novice may put an implement on that is so heavy when he picks it up that the front end is too light to steer. But if anyone wants to stay within the manual recommendations, that's fine, but if they ask for opinons, I usually give them mine and they're certainly free to ignore it if they wish, and no hard feelings at all if they ignore and/or disagree with my opinion.
But since I've been married to the same woman for nearly 37 years and raised two daughters, I don't feel that I really need you to tell me how dumb I am; they've always taken care of that./w3tcompact/icons/laugh.gif/w3tcompact/icons/wink.gif