Rear end is done in my truck. 05' z71 5.3. Question is what to replace with? I've been wanting to change ratios. Running 3.42 now. Cam, longtubes, stall and tune coming soon. I'm thinking 4.10's ! What type rear is good and can I run 4.10 in rear and leave fronts 3.42 as long as I don't use 4wd. Eventually going to do both as finances permit. I'm also on the stock 17's. On the last track day I ran 15.0 at 93 with current setup. Thanks