Calling all JD 3x20 owners who use the MMM:

[sunnyside360]

Installing rear wheel weights or liquid ballast in the rear tires greatly improves tractor stability and traction. My 3720 Cab has liquid ballast in the rears and I've had no problems with stability or handling snow in the winter. Also, the dealer will likely recommend extra rear weight if you get a front end loader regardless of what tractor you decide on.

 

[OhioKyle]

I have the 72 in. AutoConnect deck and would recommend it. It was leveled at the dealer but didn't cut level; I was able to adjust it enough to get a good cut with it. Although it does hang low when raised I no longer concider that an issue. I can drop or install the deck in under 2 minutes with no real heavy lifting.

 

[Malvern]

I have a 3120 with a 72 mmm and cut 5 acres every weekend, I would recommend it, it cuts very well and will leave strips in your yard.
I really don't have any problems removing the deck back on once you learn the tricks like turning and moving the gauge wheels to the highest point, turn the deck height adjustment knob all the way out, drop the deck, remove the attachment points and pull the deck from the side. Works best and fastest on a smooth surface. Best a 5 minute job.

Malvern

 

[Tritonman]

I have a 4400 with the 72 inch mid mount and it think it is fantastic and is a mowing beast. It definately helps having a loader on the tractor to lift it up and move the deck under it easier. Takes 5 minutes to unhook it and 15 minutes to hook it up with another person helping.

 

[FRIZ]

if your going to look at the 3X20, you could also consider the next larger Kubota as well. The L40's and the B3030 are very different tractors.

The issue is that the John Deere dealer is 8 miles away and is very attentive to me (I have been talking with them since last November and bought the JD4720 there in June.) The Kubota dealer is more than 30 miles away and I just cannot connect with anybody there.

 

[Killer_B]

I have a 3320 with the 72" mmm and have used it for two seasons.

1. It's beefy.
2. It has a nice cut.
3. It only takes 6 minutes to remove or reinstall. However, as time has gone on, I have to admit that I have come to dislike the task. If I had it to do over again, I would get an RFM.

KB

 

[soulasphil]

I use a 3520 with a 60D Autoconnect MMM and am very happy with the set up. As I have Ag tires, the mower doesn't lift very high, but I don't hesitate to drop the deck and pick it up again when there is some more mowing to do.
Installing or removing the deck is quick and easy once you've memorized the sequence and implies no physical effort. It cuts beautifully. My only criticism is the noise level, but I now wear ear protection when mowing.

 

[Nuru]

I have a 7 Iron 72" MMM and it works fine. I tend to leave it on no matter what. I have gotten a bit lazy lately. I run Turf Special tires on my unit and I run them with the Turf Specials installed. Even though the Deere Manuals say they won't work due to rubbing. Mine do not rub at all.