Would that be the same as a factory 396 from 1968 cause I do know for a fact that it is a 1972 402 engine and trans. also here are some other codes from my build sheet maybe it can be narrowed down further for the Axle
the axle number is supposed to be a SP60 354 but after reading it and really looking at it it basically tells me that its a SP for Spicer 60 and the 354 for the gear ratio oh man thats a relief now can anyone tell me why the site that orange crush has posted says that 68 only had either a 4.10:1 or 4.26:1 but thank you guys so much for the help