Mountain Max Driveshaft/Drivers

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PMaine

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I am doing research on the Mountain Max driveshaft/drivers and could use any help given! My goal is to install a 1.25" track with studs.

I hear people reference 8 tooth drivers, which as I understand are smaller than the standard vmax/venture drivers, but does anyone know by how much?

What size track can be run stock on the 1997 era Mountain Max? What confuses me is that the stock Venture drive cogs are the same part # as the stock Mountain Max drivers in 1997. In 1998 they changed the part #.

I've found these on ebay, which are listed as a 9 tooth driveshaft off a 1998 Mountain Max.

s-l1600.jpg

By reducing the driveshaft cog diameter, what effect will it have on the sled? I do 95% of my riding on tight trails and I love the blast of 0-50, provided I can maintain a top end around 80 mph.

Thanks everyone.
 

I just realized I can't use that drive in the photo, not all of my track windows are open/clipped.
 
8 tooth would be a little over 3/4" smaller than the 9 tooth overall. Not sure when they used 8 tooth on the mountain max. I got a speedo gear from one since I have 8 tooth on my srx to get my speedo closer but cant remember what year it was from. It does lower the gear ratio quite a bit but from what you are wanting it would probably be pretty good. My srx hits about 105-110 on the dreamometer before I can tell it is running out of gear. I have 23/37 gears in the chaincase which puts me at 1.82 ratio. I am pretty sure the chassis is the same and I had a 1 1/4" track with studs with no problems. The drivers in the picture are 9 tooth. Basically the 2.52 pitch X 9/pi =the size of the wheel. Same with 8 tooth just use 8 instead of 9. Hope this helps
 
I cant find the listing from when I got my speedo gear housing but I am thinking it was from a 01. For some reason I am thinking 99 and up mm had the 8 tooth but not totally sure. I have done so much searching for that stuff my brain cant sort it all out to remember. LOL
 
I have an 02 mm. Had 8 tooth drivers when I got it. I think that was factory size. I also have 20\40 gears and seem to top out about 80-90 depending on snow. I don't have lakes and stuff to test on where I ride. Mine does have different primary and secondary but that probably doesn't change top speed a lot.
 
You would need the speedo gear housing from a mm with the 8 tooth drivers. I am pretty sure this is the part number 8DP-47700-00-00
 
if your only wanting to use a studded 1 1/4 track, just use the 9 tooth drivers and save the track ratcheting issues. use a 1.175 stud and it will stick above the lug about 1/8. If you think you need more than that, I would remove an 1/8 from the tips of the lugs before running 8 tooth drivers. This works great for regular trail riding.
 
That's the main reason for wanting to switch to a 8 tooth driver, but I didn't know they were known for ratcheting. Thank you for the advise, I think I will run the 9 tooth drivers I have and think a little more on the studs.
 
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