This is the original HD trans sprocket spacer next to the new Baker spacer.
From Baker's web site
sprocket spacer
If you are a seasoned technician, you have seen a severely worn sprocket spacer. Over time and miles with dirt and grit, the stock 33344-94 spacer is too soft and it gets gouged by the seal that rides against it. As the spacer gets gouged, the seal relaxes. When the seal relaxes, the leaks begin. Our sprocket spacer is a direct replacement for the stock spacer except ours is case hardened steel that has a Rockwell āCā hardness of 55. No more gouging, no more leaks.
Sprocket Spacer, 94-Up Big Twin & Sportster p/n 33344-94S
Whether you agree with the hype or not, the Baker part is cheaper then the HD part. And the the recess is cut into both sides, so it can be installed in either direction.
An update on this spacer.
I pulled my trans out and sent it back to Baker, didn't like the way it was shifting.
They rebuilt the trans (looks like a complete new gear set), supplied all new bearings and gaskets and shipped it back on their dime.
The spacer mentioned here apparently lives up to the claim to being a better material. Didn't remember it until I checked this thread for a post.
But, the Baker spacer, after 25K miles still looks good with no wear and is back in the bike with a new quad seal o-ring.
The spacer on the left is HD at about 22K miles, new Baker on the right.
