Found this old B3 thread where someone quotes the part number as 1042
http://www.radiocontrolzone.com/show...=35834&page=34
Still available, seems to be used on just about every old Losi buggy/truck
http://www.amainhobbies.com/product_...-CVD-Axle-Losi
I don't know if it will push it in by a whole 2mm though, but I didn't have any problems with the original shocks and no limiters.