well i started talking about this in the classifieds but it got a little too detailed to continue asking stuff about doing an axle swap/ putting in a rear locker. So i was just looking around on ebay for the Powertrax No-Slip which was recommended to me by a couple guys. When looking at the list of stuff on ebay it was giving me the option of different spline counts, bolt counts and different sizes, 8.2 or 8.6... me being pretty new to working on axles i am not sure which one will fit for me. I have a 2003 Trailblazer LT with a 3.42 GU6 rear axle. I know it probably sounds like a dumb question to some of you guys but i couldn't find any info on how to go about finding this out.
thanks for any input...