hey people,new on here,great info,does anybody know how to id rear end on 1965 chev shortbox,been looking around but nothing for trucks that i have seen,only numbers i have are 3856525,and stamped on axle housing is MHA?and also it is 12 bolt truck rear,pretty sure of that when doing research,8.875 12 bolt,can these numbers tell me gear ratio?how can you tell if posi?thanks,,new kid on site,
