hey fellas I have a 4.8 silverado ext cab with 342 gears with 275/55/20 tires its my daily also have intake, headers, pulley, servo and a tune .Question is should I go with 373 ,390 ,410 gears thank you in advance for your help

 

do you drive mostly city or highway? i have the same truck and an inch bigger tires and i'm getting 15 all city, and about 19 all highway.

 

I saw 4.10 if mixed. If alot of highway 3.73

 

I work in the plants and I never know where they are gonna send me next so yeah

 

4.10 will be fine with those 20". Throw you a little converter in there and wake it up.

 

what kind alot of people told me that the trail blazer stall its good or what do you suggest

 

but alot of people tell me 410 get bad milage and the rpms atte gonna be running hi how true is this

 

i have 3.73s in my 2008 in winter i role with 275/55r/20 i have no problem stompin on the gas as she gets up and goes. in the summer i have a set of 265/45R/22 a lil heavy'R than the stock 20 but has enough gear to get her movin. with your setup id go with 3.73 u can pull, get somewhat good MPG, and theres enough gear to get those tires cookin.

 

ok any one else

 

I'd just get the 4.10s, but that's me.