well i got a 2007 gmc sierra nbs 4 door with the 5.3 mods are LT headers k&n cervo full exhaust n tune im going to put a tb stall for now and the gears well im wondering what do i need to get my truck from 3 42s to 4 10s....or do i just by the ring and pinion????and will my truck mess up with the 4 10s lol just somebody told me i needed more power in order to get 4 10s lol

 

you can run 4:10s anytime you want.

all you need is the gears and a pinion bearing kit if you are keeping your G80. if you are installing a Tru-Trac then you will need the master install kit.

 

ring/pinion and a Master Install kit. You'll also need to have your PCM recalibrated for the gear change.

 

^^^yep. retuned too.
the master install kit does the locker bearings too which arent needed if he keeps the G80

 

so basiclly i just order the ring and pinion and thats it..do yall know like an estimate on how much they charge to install them????

 

are these good for my truck http://speed-eng.com/store/motive-pe...lt-p-9994.html or should u go with 373

 

https://www.performancetrucks.net/fo...d.php?t=464931

definately go with 4.10s and order from rons ftw!

 

that depends on the shops in your area. I'd guess around 300-500

 

thanks guys ill give ron a call tommorow...and what are 4 10s good for lol

 

oh and is mine 10 bolt or 14 bolt lol im knew to the truck game