This is a A-70327997 Inner Cup PN: 70327997Main Description As Following : A-70327997 Inner Cup P.N: 70327997 Used In Chainbox With Part #70531251Outside Diameter: 2.328"Radius: .05"Width: .465" Stocked As: A-LM67010-I , Crosses To: A-LM67010-I , , A-LM67010-I ALLIS-CHALMERS , A-LM67010-P ALLIS-CHALMERS Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : Used In Chainbox With Part #70531251 Outside Diameter: 2.328" Radius: .05" Width: .465"