Talking to my dealer i see the ideal brush hog for my GC2310 is the 4ft 1004 from massey. Do any of you have this unit?
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Every brand of tractor markets their own paint and decals on some sort of brush hog line. MF is no exception. They are probably OK at least in the sense that you have a dealer to work with if there are any issues, etc. They are not widely sold to non-MF tractor owners. I have both 4ft (Deere 413) and 5ft (Bush Hog) branded rotary cutters used on Kubota
B2150 tractors in separate locations. The
B2150 is a little heavier tractor than your GC2310 and a couple more hp but not all that much greater. I find the 5ft is easily handled by the
B2150. The 4ft is quite handy in getting into tight places and being less cumbersome at times. The 4ft seems ideal for your machine.
I would not run right out and buy a slip clutch for a 4ft cutter UNLESS you routinely run over roots, large rocks, heavy brush, etc. There are reasons why slip clutches are not usually found on the 4ft cutters on dealer lots. 1) It adds expense and 2) it is rarely needed. Both my 4 and 5ft cutters use shear pins and in that size they are appropriate in my opinion. Keep them snug and make sure they exactly fit the hole. Shear pins are a real nuisance only if they are loose in the holes, don't fit, etc.
My advice to you is to shop around. There are MANY good rotary cutters out there. Bush Hog, Landpride, Deere, Kodiak, etc. I like the Bush Hog brand best because they are so good at backing them (and because they are well made to start with.) The main manufacturers sell light, medium and heavy duty cutters. The medium ones are plenty HD to me. The ones called heavy duty are apparently intended for bashing small trees into submission, are much more expensive, and I do not need that. Probably in your size machine and 4ft cutter the MF 1004 is the equivalent of a light duty which is not bad and may fit your application well. Again, a good handy dealer is always a factor.