i have a 2007 nnbs sierra 4l60e 4.8
i want to put a posi unit in the rear end.
i want 373s gears and a trutrac.
would this be a good street setup
currently i have the stock 17's. 24570r17
the truck is a daily driver. no towing.
all highway driving.
the truck is equipped with a volant intake . in the very near future a blackbear tune and magnaflow si/do dumped at rear axle.

 

What gears do you have now? 3:73's or 4:10's would do good over 3:42

 

I agree with Scooter. Just curious if there are any long term goals?

 

being that it is a 4.8 im not looking to have the fastest truck. i have i think 3:23? or 3:42?
black bear tune and magnaflow si/do with longtubes( lpp or pacesetters ) and a stal hopefully by the end of the year. the rear end is leveled and possibly going to a 22" tbss comp grey or stock 20's also a cam swap for a little lope to add to the open exhaust.