Dear Ralph: I have a 2002 Polaris RMK 800 with the 151” track. At the end of last season I changed out the stock...

Dear Ralph:
I have a 2002 Polaris RMK 800 with the 151” track. At the end of last season I changed out the stock driven clutch for a Team Rapid Reaction Driven. The difference is incredible, anyone that rides a sled in the mountains should get this totally affordable bolt on.

I also have a sled I built for my wife. It’s an ‘86 Polaris Indy 400 chassis that I updated with a 136” FAST M-10, 1-3/4″ track, toothed drivers, 41″ ski stance and Works Perfect shocks. The motor is from a ‘92 XCR 440 (the 92′ still runs 38’s) with dual SLP pipes. This sled goes places I can’t believe!

Now my question: Can I put my stock 800 RMK Driven on my wife’s sled? If so, what spring & Helix do you suggest for deep & steep, and still be trailable?
PS: SnowTech is the most informative & enjoyable sled magazine that I have found.
Steve Matthews
Truckee, CA

Of course you can install the “new” secondary from the RMK on your older sled, as all P-85 secondary clutches are basically interchangeable. The only thing to worry about is the helix in this clutch is cut deeper under the snap ring so the clutch can open far enough for full shift out with the wider 1 7/16” drive belt.

When installing this clutch with this style helix into your sled you want to install two more of the 0.030” washers under the snap ring (for a total of three shims) to prevent your narrower belt from touching the inner hub at full shift to prevent drive belt failure. Basically, you’re keeping the clutch from opening too far since you’re running a narrower belt than what the RMK does.

Other than that, the alignment procedure is the same and you’ll gain the external width adjuster feature so you can quickly set the ride height and belt deflection without having to take the clutch apart.

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