Thanks for all of the helpful information! As for the rust I’ve looked at everything as good as I could and all the teeth seem to be in great shape actually but I know it’s been sitting for some time with no gear oil in it and the cover halfway off! Someone already picked through it and took one of the axles out and the clamps on each side so I moved the clamps out of the old one and was a perfect fit now just take one of the old axle shafts off the old one and get the c clips in there. Hopefully the rust doesn’t cause too big of an issue once it’s all lubed up… fingers crossed