MasonB

I'm thinking of putting a set of 4.10s in my 03 5.3l I have 20in American racing torque thrust rims with gmax 245/45zr20 I'm just curious as to my estimated gas mileage so if your running 4.10s or something close let me know your set up and gas mileage also I'm curios what diff your running with them

03sierraslt

iTrader: (22)

I am running them but trying to compare gas mileage wouldn't be very beneficial.

RS/SS 4.8

iTrader: (13)

I run 4.10s 90% highway so about 2400 rpm @ 75 mph. I get about 18 mpgs and thats with a 285/50/20, 4.8 a tsp 220 cam and a 3200 stall torque converter. BTW gas milage stayed the same for me and before i was running 3.23s with 275/55/20.

MasonB

Yea I know every ones truck runs different bc of setup (N/A, turbo, supercharged ect.) so I won't know for sure till I put a set in I'm just curios as to what the majority are getting with them so I have an idea

03sierraslt

iTrader: (22)

I get 15-15.5 highway, but that's with the OD of a 80e ( a tad better mileage with a 65e)

70mph is 2400-2500rpm with 285/50/20 tires

hotrod04

iTrader: (1)

I have a set of factory 4.10s that I ran for about 2,000 miles then pulled em out. I could send these to you. Pm me for price.

greasemykey

iTrader: (5)

im running them with a 275/55R20 and the engine in my signature. i get about 15 but it is tuned a little on the rich side.

Ricksilvy

4.10s on 29.5" tires running 2200RPMs at 70mph. Average 17mpg.

PaulyC

i average about 70 mph highway and pull about 18mpg. city driving however im down around 10 or so.

shupe

iTrader: (7)

I'm running 4.10's and a trutrac. Mpg with the 60e was around 19 at 68-70, now with the 80e i'm close to 16.