ZR 700 Driver question

[Northern LP Rob]

I have a 1999 ZR 700 that had the Speedo side Driveshaft bearing go out. I need another new driver/driveshaft assembly for this sled. The AC number for the ZR 700 driver assembly is 0728-041. This was also used on some of the ZR 600 and powder special models in 200 and 2001. These drivers have smooth wheels on the outside and 9 tooth cogs for the center wheels. Am I stuck with using this particular assembly? I am having a hard time finding it on Ebay. I seem to find everything but this part. I find a lot of part 0728-032, which visually looks very similar. I wouldn't mind having drive cogs on the outer wheels also. Anyone know what I can use? Are the spacing on most of AC's driveshaft assemblies the same? Any comments are welcome.

Thanks

Rob