It took a while,must of had light winds in the sails!! I always retorque the fasteners on the gears. Be aware of spacer placement if you have them. Also, don't forget to hang on tighter when you pin the throttle!!!
The nut on the top gear on my 04 700 (called castle nut) is torqued (tightened) to 50 foot lbs. or 69 Nm. The sprocket bolt on the bottom is tightened to 19 ft. lbs. or 26 Nm. I can't say yours would be exactly the same, but should be close. It would be in your service manual if you have one.
look on-line for higmark recreation out of boise,idaho. I just bought a pair of 18 top/43 bottom gears for my 08 rmk 600. (cost me 95.00 and change)ask for reggie. i get to use the stock chain cause i just changed the ratio from the top gear to the bottom gear taking away from my top speed but since i play in the mountains i get all the lower end grunt you can handle. i may only be able to go 70-80 mph but i get there quicker than anyone else. i know they will ship to you for a moderate price.... hope this helps