1987 K100LT went "klunk" and no power to the rear wheel

[Laitch]

I don't reckon that coupling a good condition shaft with your drive is going to influence the longevity of either unless you're flogging your bike. I don't see the rear drive end of the eBay driveshaft looking any better than the one you have now, BB. Maybe I should find my glasses.

How many miles on your bike? 

[BermudaBrick]

55,000 on my 1990 K75RT.  The splines on eBay definitely have the "mountain effect", but a few of mine (like at the 2, 3 and 10 o'clock positions) look to be in worse shape.  But maybe not?  I'm just thinking for about $100 the eBay option could buy me some more time if my shaft fails. 

[Skids]

BermudaBrick,

I think TimTyler has the best idea for you now.  If you have some life left on your drive and drive shaft use it.  I've made lots of calls and am finding that any kind of fix, other than finding some good used parts, is quite expensive.  I've found someone in VA who can fix the pinion in the final drive but that come to close to $400 or more.  Then a new drive shaft I believe is another $300 plus dollars.  I haven't found anyone yet who will repair the drive shaft except for Bruno and he is not available for 6 months at least.  I've been looking for used drives and drive shafts, and it still seems you will have to pay $150 to $200 at least for a serviceable drive and the same for a used drive shaft.

Right now I'm considering whether or not to fix mine.  If I found someone who could give me a fair price on the bike as is I might do that as I've got another bike too.  Apart from my drive problem the rest of the bike is strong, although not great cosmetically.

Good luck with yours. 

[F14CRAZY]

Yeah I'd run it a while longer then get at least a used driveshaft, or perhaps that new Motobins end.

My bike was sold was an extra driveshaft in good shape...I'm saving that one for a special occasion

[BermudaBrick]

I bet you have more than 10k left unless you're a really aggressive rider. You should clean all that crud out of both splines and post more pics.

Not to completely hijack Skids' thread, but after cleaning a bit I think the drive shaft actually looks a bit better.  Worn, yes; but more uniform I guess.  Would you agree?  How many miles would you guess I have before I have no go?

[billday]

Beemer Boneyard is always a good place to look for used parts.