Thanks for the replies, going to go back at it tomorrow and recount the splines. Definitely two different diameter axles on this. It's definitely being messed with. I have a front clip off an older Nissan that I tried to swap shafts. To solve the five bolt pattern and just go with six Bolt on either side but the shaft is too skinny and won't engage the side gears plus the length is different. Totally won't work. So now I'm wondering the skinnier shaft whether it's even engaging the side gears on the other side. Once I'm finished all my suspension work I'm going to focus on this diff to figure out what's going on. The thing is the auto hubs look identical left and right but one will not fit on the other shaft I've measured them with a caliper and they are definitely different. I'll repost when I have it figured out.