2.64 X Ratio 9310 Nickel alloy SuperT-10 Tex racing Cluster gear, 1"Shaft plus .100 long Industry # T10X-8A tooth count 28-24-21-18,   the head gear is .060 wider than a production gear . takes a 20t input also available in Nickel  , 21Tooth third [ same as 2.88]and 24T second ,, this gear was over 400.00 in the 90s ,Used showing no wear , staining is dryed cosmoline not rust, will require mods to use in a stock case