2012 GMC Sierra 3.42 to 4.10 Gearing Swap

Finally got the new gearing installed and the results are quite impressive. The truck has the Flex Fuel 5.3L. It definitely has more get up and go plus I'm still getting around 14.7 MPG which is what it was at before.
Performance upgrades:
TruckExhaustKits.com
2.25" Aluminized Steel Dual Exhaust Kit
Ebay.com
Flowmaster Super 40 Series Muffler
Dual Inlets 2.50", Dual Outlets 2.50"
AutoAnything.com,
K&N 77 Series Metal Intake Kit
HP Tune (Done by a buddy of mine)
Full video of the burnout contest:
• Burnout contest at Moo...
Where the truck is now:
• 6.2L Project Finally F...
Check out my Facebook page for behind the scenes stuff:
mncarguy