Basically, visually it appears to have smaller and more elongated lobes, and a heavier spring for the detent arm. (Original on left, Mod on right)
The shifting is now very firm and precise. It moves into gear much faster and with more force (it even sounds louder as it clunks in).
The best thing is that I just have to flick the shift lever and it jumps all the way into gear.
On upshifts, I used to push the shift lever all the way to make sure it got into gear.
Now it does most of the work itself.
A real joy to shift, especially coupled with my extended shift lever.
My tranny should last a long time now.
It was about a 2 hour job to put in and had a couple of twists, but still acceptable considering the results.
Highly recommended"¦.
These guys seemed to have the best price:
http://stores.ebay.com/Worldwide-motorcycle-equipment
If anyone would like some pictures and text regarding the install, speak up and I will post some.
Mike A