K75 splines

[cayuse60]

Had the rear wheel off...Maine road hazzard...chain saw file dead center in the tread.
Anyway I pulled the diff to check for the spline lube that was told to me from the previous owner..."red stuff" and not much of it. Diff appears to be "OK" for 53k miles, but drive shaft is toast.
Put it all back togeather and have ordered a new drive shaft from Chicago BMW.
Not down but will be riding only locally until new parts come in:(

---tim

[deilenberger]

Tim,

Unfortunately - unless your bike is very unusual - there is also wear on the input shaft of the rear drive. And that wear will cause your new driveshaft to look much like the one you're replacing rather quickly. There are several places that rebuild both the rear-drive spines and the driveshaft splines (or provide a new driveshaft.)

Do a search on Brunos (in Canada) or Hansens BMW (Medford Or.) Both do good work and provide a quality product.

Putting the new driveshaft on an old input shaft reminds me of what an old friend once said..

If you have 50 gallons of poop, and you add one tablespoon of wine - what do you have? If you have 50 gallons of wine and you add one tablespoon of poop - what do you have?

Both need to be new to last - replacing just one is a short term ill advised economy.

[Bobmws]

And when you replace both as Don recommended, use Honda Moly 60 paste as a lube. The 'red stuff' is OK to grease the hinges on your screen door, not much else. I'd also suggest checking the clutch splines and lubing with the Honda lube.

[cayuse60]

Tim,

Unfortunately - unless your bike is very unusual - there is also wear on the input shaft of the rear drive. And that wear will cause your new driveshaft to look much like the one you're replacing rather quickly. There are several places that rebuild both the rear-drive spines and the driveshaft splines (or provide a new driveshaft.)

Do a search on Brunos (in Canada) or Hansens BMW (Medford Or.) Both do good work and provide a quality product.

Putting the new driveshaft on an old input shaft reminds me of what an old friend once said..

If you have 50 gallons of poop, and you add one tablespoon of wine - what do you have? If you have 50 gallons of wine and you add one tablespoon of poop - what do you have?

Both need to be new to last - replacing just one is a short term ill advised economy.

Thanks for the information and anology...I agree and was able to procure a good used diff and drive shaft and will be installing this weekend.