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Hi everyone Im in need of some help.Bought an 02 grizzly 660 about a month ago and the axle shaft from the engine to the front diff buggered up.Everything Im seeing says the 02 has different axles from 03 and up.The axle I found on ebay dosent look like mine.mine looks more like the 03 so my question is could my 02 be fitted with an 03 shaft from the previous owner?If so that would mean the cups on either end were also swaped for 03 or higher?Ill include pics of my broken one and the one I found on ebay.Any help would be much appreciated!
 

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Your bike has the newer style front driveshaft installed in it.
The 2002 model had u-joints. It was a common swap to happen as the 2002 is a oneoff year, so it's a hard part to find, used or new.

Additionally to this, Yamaha had a problem with the newer driveshafts stripping the splines on the engine side coupler. This was because the driveshaft was too short, allowing dirt to enter the splines and wear them out. It was easily fixed by elongating the diff mounting holes and move the diff back about 1/4".....no more problems.

If your engine side coupler splines are in good shape, then all you need is a new driveshaft. It will be cheaper to replace the complete shaft with a aftermarket unit than buy just a factory OEM joint. Parts Discounter on eBay has a good deal on that driveshaft, and couplers if required.
 

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Tjanks for your answers guys.I ordered an 03 shaft from parts discounter.The 2 cups were in good condition .The shaft was 700$ from the dealer and 78$ from parts discounter and 1$ shipping.Cant go wrong there.Back up and running.awesome machine!
 

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Tjanks for your answers guys.I ordered an 03 shaft from parts discounter.The 2 cups were in good condition .The shaft was 700$ from the dealer and 78$ from parts discounter and 1$ shipping.Cant go wrong there.Back up and running.awesome machine!
If it's not already done, it's in your best interest to move the front diff back in the frame by elongating the diff mounting holes about 1/4".
This will prevent the rear splines from failing. It bulletproofs the shaft design.
 
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