I'm pulling apart my M20 and found that the counter-shaft just fell out because of a loose fit. Also it looks like the counter gear thrust washers were spinning and gouged the inside of the case so I need to get another one. My car is somewhat stock looking with number match engine but a lot of the orig equipment is gone such as all emission hardware and it has headers etc. The old case is not a numbers matching, it's not even the correct part number for a '73 so I'm not going to repair it since a new one is close to the same money as re-bushing it. My question is should I get a repop, correct p/n case from Camaro Central http://www.camarocentral.com/1970_1974_Muncie_Transmission_Case_GM_3925661_p/tra-610b.htm or a stronger but less orig looking AutoGear Super case? http:http://www.5speeds.com/cart/index.php?route=product/product&path=75_17_69&product_id=69// They are both about the same money. Before anyone says it , yes I know it's my decision but which do you think would be more desirable from a resale standpoint? The engine is mildly warmed over maybe ~300-325hp, I don't drive it hard and it will never see the track.