Yes sir, sorry.. I was meaning a 12 bolt chevy rear end. I have a 64 c-10 with a 5-11 gear. Sort of rough on the pocket book to drive. I was thinking about going as high as I can go without having to change out the carrier(diff case). Maybe a 3.08. The rearend is in great shape. We have always checked it. I just serviced is when I put my truck back together and it is still clean.
