GMorBUST

iTrader: (3)

hey guys, tryin to decide on which gear would be best for the truck. tried using the gear calculators on the net but no luck. it is a daily driver and does see quite a bit of highway driving. current setup is in my sig, its does have the crappy 3.23's on it now, and im rolling on 31.9" rubber. i do plan on dropping the tire size when i buy the next set to a 275/[B]4[B]5 20 so that will shorten it a bit. right now my shift points are set at 6700rpm, and im not shiftin outa 2nd a wot till 114 mph. was thinkin either a 4.11 or 4.30. ohh it does get factory wheels and tires put on every winter which are a 265/70/17

dlt76028

iTrader: (13)

If your dropping down to a 30" tire I would say 4.10s.

BlackGMC

iTrader: (31)

holy crap.... this is so high! mine shifts out in the mid 80's....

slo-rod

iTrader: (1)

A buddy of mine has similar truck and setup minus the tb converter and he has 4.10 with 31.2" tire and loves it. I tried to talk him into getting 4.30 but didnt want to cuz he dd it. I swapped from 3.73 to 4.56 with 30" tire and love it. I also dd at 70 I turn 2500 rpm. I would go for the 4.30 since you probably drive farther than me but your tire is taller too.

MPFD

iTrader: (5)

As low as you can without getting butt hurt over highway cruising speed...

Quik

iTrader: (7)

with 456s 30" tire you should be 2400-2500 rpms cruising at roughly 70 mph
if your worried about gas mileage then have your tune setup for it

GMorBUST

iTrader: (3)

thanks for the info guys, 2400 rpm at 70mph sounds pretty good. not REAL worried about fuel mileage but deff dont wanna be gettin 9 mpg either. i want something that is gunna be semi decent for DD but is still gunna get my 60ft down at the track. my time is sacrificing BIG time from a 2.8 60ft. sounds like a 4.30 is what i need.

Bumpers

iTrader: (10)

with a 275/45 i would go with 4.30

GMorBUST

iTrader: (3)

check that! seems a 4.30 gear is $100 higher to a comparitive 4.10 gear so went with the 4.10's. maybe my 60 ft time will improve a little bit now

Bumpers

iTrader: (10)

they should def help over 3.23 what brand did you go with?