Sparex source: https://us.sparex.com/weasler-complete-pto-shaft-wide-angle-one-end-lz-length-1168mm-1-3-8-x-6-spline-80-w-a-to-1-3-8-x-21-spline-friction-disc-clutch-147832.html Product: Weasler Complete PTO Shaft - Wide Angle - One End, (lz) Length 1168mm, 1 3/8 X 6 Spline 80° W.a. To 1 3/8'' X 21 Spline Friction Disc Clutch - Sparex S.147832 SKU: S.147832 Listing note: HP Rating @ 540RPM: 64HP, Series:AB6/CAT4 Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.