Im pretty sure its 8.8" I just wanted to make sure. I hear everyone is having good experiences with gears so I think Im going to install some 4.10's and I think Im going to try my hand at the install.
To install you will need inch-pound torque wrench and magnetic base dial indicator, skill, and knowledge. Do you or someone you know have these things?
if you're going to do it yourself, I'd recommend having someone with 8.8 gear install knowledge and experience there to guide you. the rear axle isnt something you want to screw up and have problems with. good luck though