I have not done very much reserch yet on this yet but I have run into a problem. Im in the process of swaping out my 10 bolt in my Tahoe and putting in a 14 bolt semi float. The problem I just ran into is that the axle shafts are pitted so I had my work order some used ones from a selvage yard. I was unsure of what my axle came out of and the year but was given to me from someone my boss knew. So I got some axles for a 1994 Chevy 2500 14 bolt semi float rear. The problem is I went to put them in and they are too long. I mesured the axle shafts that are from the axle I want to put under my truck and they mesure 31 1/2" long. The ones I got are 33" long. Im going to be going to a scrap yard tomorow morning and would like to know what im supose to be getting my axles out of. Any help would be great. I am looking around right now to see what I can come up with but figured I would post here first since you guys tend to know alot. Thanks.