Guys, I'm trying to mount a DS2246 disk shelf into a Netapp cabinet with a pair of FAS8060 heads. The shelf is coming from another Netapp cabinet and uses the regular support rails. But in the FAS8060 cabinet, the rear rails are mounted further back, and it looks like there is an extension bracket mounted on the rear post to support the support rail.

I'm pretty sure my rails are as shown in this document:

https://library.netapp.com/ecm/ecm_download_file/ECMP1139640

but I can't seem to find exactly what I need. Some digging leads me to think I might need X877B-R6 mounting kit. Or better yet, is it the X8783A-R6 with some sort of extension? I'm across the country from the system now, so I can't just go and look at it very easily.

Any suggestions are appreciated.

John