2000 Posts and climbing!!!
Join Date: Mar 2009
Re: what's the difference between.......
As was the case with the older L model "upgrade" from the 6.6 to the 7.6HP, a fair amount of what Gravely did with their numbering designation was for semantics. Municipalities would need a slightly different tractor than private parties and of course, every few years, a new color combination was needed. At the end of the day they were all 12HP Kohler powered tractors with only slight variations.
Don's mentioned the difference in hub design between the 500 and 5000 series machines. The keyed design of the 500 series hubs prevented Gravely's steering brakes from being installed on this machines, so you won't see a brake assembly on a stock 500 series machine. The brakes come in very handy for working on slopes and turning heavy attachments - not having them is a (slight) downside to the 500's.