Trying to learn more on my Spicer PTO, more importantly on what it fits.

I believe it's a 2-Speed. Tag states Spicer by Dana Corp GCE6-14

I finally figured out how to post pictures:
Attachments
DSC00522.JPG (34.38 KB, 161 downloads)
DSC00523.JPG (48.89 KB, 163 downloads)
DSC00525.JPG (35.35 KB, 160 downloads)
DSC00527.JPG (28.82 KB, 156 downloads)
DSC00529.JPG (31.89 KB, 151 downloads)


'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan