Hi deere5105 I think the 65M/E can probably handle a MX7 i've seen a few people use a 4(5/7)20 with a mx 7 bush hogging it depends if your property has inclines and hills if you have alot of hills and inclines you should get the mx 6
Beautiful machine! I'm not intimately familiar with that model, but it appears to have a gearbox like my 5045D. You could have posted that your tractor is brand new and no one would have been able to tell by looking at the pictures. You did good. Yours is very similar to mine and I like the added mass very much (over 6,000 pouns with loader) as compared to the lighter weight tractors of the same HP range.
Much of this is personal preference and also related to your driving experience. It sounds as if you are like me with plenty of previous experience dealing with a clutch pedal.
In finding and choosing a tractor recently, one of my top goals was to get a regular shift transmission with a clutch pedal. If you are competent with a clutch pedal, the sync reverser will serve you quite well for FEL work, you can slip it easily forward to reverse as the tractor is moving toward the position where you want to change directions without the tractor being at a full stop.
Many younger folks don't have the clutch skills or just don't want to bother with a clutch pedal. By choosing such a tractor if you are comfortable handling it, you will have a gearbox that will probably never need any attention. In the case of the fancier systems, if they ever DO give any trouble, it will be very expen$ive to repair. I can split a tractor myself and replace the clutch, but I'm not going to attempt an overhaul on one of these fancy transmissions.
So, with all the fancy doodads, you get to pay more money up front PLUS pay more money later on should they need repair.
I really like the basic simplicity of my 5045D and find the syncreverser very natural to handle. As an added bonus, I know that if anything does happen I can take care of it with minimal expen$e.
Enjoy.
My $0.02,