elrojo27

iTrader: (2)

any difference between the 4.10s and 4.11s??? i am going to upgrade the gears on my 04 sierra and well just wanted to know whuts the differences if any

truckmann

iTrader: (8)

Very little difference. Only one hundredth of a turn.

elrojo27

iTrader: (2)

any performance wise??

trever1t

iTrader: (14)

no

the difference between 3.73 and 4.1 is ~10% so you can understand.

elrojo27

iTrader: (2)

well mine has 3.42s so i think it will be a big difference

nightrunner

iTrader: (4)

the difference between 4.10s and 4.11s is the manufacturer of the gears and their tolernaces. you wont find one manufacturer that offers both 4.10 AND 4.11 gear ratios

elrojo27

iTrader: (2)

so would it be safe to say that they will work pretty much the same

Spoolin

iTrader: (8)

Same difference. If you wanna feel better about yourself get the 4.11 but you won't feel or see any differance.

James B.

iTrader: (1)

There is no difference.
The ring gear has 41 teeth and the pinion has 10. 41/10=4.10

It would be mathematically possible to achieve 4.11:1 with 9 teeth on the pinion and 37 on the ring gear, but GM does not use that configuration.

1SlowHoe

iTrader: (28)

I remember reading that the gear was a 4.1XX. Somewhere between a 4.10 and 4.11 and manufactuers either round up or down just to make it easier. The gears are the same.

Just like if something in $19.99 or $20.01. Either way, you say it was 20 bucks.