Pretty good deal- - - -not a bargain, but you didn't overpay. I believe the 2-groove input shaft means you've got the wide-ratio box with the 1.88:1 2nd gear. Don't quote me on that, though- - - -it's been 35 years since I ran one in the dirt tracker!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!