I'm thinking that perhaps yer' kinda a big dude, eh???
The reason I suggest this is.....I'll bet you have'nt bothered to set up your sag heights (front and rear) and adjust the rear shock rebound setting.The original settings are set up for Liliputians I think and us bigger guys have got to make compensations. That's why the suspension is made to be adjustable.
I've an '01' Sprinter and a few weeks after geting it, I noticed the same kind of squat and wiggle in the rear. In the last 6 months or so, it seems every bike magazine and newpaper has had tech articles on how to set up the suspension. So, with that info in hand, I went about trying it out for myself.
Currently I've got one full turn on the front preload, and 13 or 14 clicks on the rear proload and the shock rebound is set with the slot aligned/pointed approximately at eleven and five o'clock, towards the firm side. I'm 6'4", 210 lbs.
Something I recently stumbled across is not only an article about this, but suggested settings for a number of popular bikes. Ironically, both our illustrious moderator and I are both running just about the same settings which are 2-3 clicks firmer than what Sport Bike suggested and a wee bit higher on the rear rebound settings.
Go to http://www.sportrider.com
and click on the tech link. It'll take you to the suspension info. As mentrioned I've found their reccomendations just a bit soft, but since Don and I are now mature gentlemen, we're probably just a bit more husky than the young bucks riding/writing for Sport Rider.
Are'nt we Don?? It's all that manly demeanor we're forced to carry!!
And of course the possibility exists that at 24K miles, your rear shock could be on the fritz???? Adjust the spring to full soft and try adjusting the rebound from full soft to full firm and bouncing the rear end. If the shock has given up the ghost, you can tell by pushing down firmly on the rear end and if it does the ol' heebie-jeebies like a car with a dead shock (contiued bouncing effect rather than attenuating in one cycle) then the shock it DOA. If so, start saving yer' pennies for a good upgrade. You'll be glad you did.
Hope this helps???
[ This message was edited by: yerguy on 2004-05-05 19:32 ]