We didn't like that G; it was the sorriest excuse for a tractor that we ever had. We learned later that it was made on a Friday; we think that they must have used parts that had been rejected during the week.
It just kept coming apart or breaking down. It came with both ends of the crankshaft machined wrong so we couldn't hold the clutch plate or the flywheel on. Also came with one bent rod that we discovered a week after we got the tractor new. It developed a big sand hole in one of the cylinders, etc, etc.
It was the last JD tractor we ever had on the place.