2008 Chevy Silverado 2500hd part?

[Peter]

Currently my truck has a gear and pinion with a ratio of 4.1, i need a gear and pinion with a ratio of 4.88. The truck has a super charger and is extended cab, does anyone know where i can find a new gear and pinion?

 

[Brian]

go to summit bro they have everything for us chevy guys. you will find your ring and pinyon there . are you a 4x4 with big tires or what?? that really low gears I have a 2004 2500 hd on 37 with 456 and I can spin the tires in to second gear easy.