Sparex source: https://us.sparex.com/levelling-box-assembly-knuckle-16-5mm-fork-hole-19mm-min-mm-725mm-3-4-unc-11317.html Product: Levelling Box Assembly - Knuckle Ø 16.5mm- Fork Hole Ø 19mm - Min mm:725mm - 3/4 UNC - Sparex S.11317 SKU: S.11317 Listing note: Min mm 725mm - Max. Length mm 825mm - Width Internal 21 mm - Width Ext.mm 46 mm Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.