It has high carbon clutches, the steels were all measured and green 400lb springs, I bought this unit built and paid over asking price plus shipping, I dont have the paperwork but I have rebuilt several before and set up quite a few. It came with the specs on the steels fibers and springs. Side gears are in great shape as well.
I went this direction as i wanted a heavy duty setup but did not want a detroit locker as they do not have good street manners.
Let me know,
I will send you my pay pal if interested can ship tomorrow.
