you should have L52 and a axle code G292, ie 4.10 diff gears, see what it says on the tag under the hood, either on the pass side fender or firewall behind valve cover
G102 is 4.375's
with 33's you really need 4.56 or 4.88 gears for roadability, and since your in Sac. better get a crawl box, you can always ad a 4.70 later
