Gear ratio

[Jay]

To add:

99-04 Tahoes and Yukons could be ordered with different gears depending on what drivetrain it had. 2WDs could get 3.23s (standard) or 3.73s (optional). The 4WDs could be ordered with 3.73s (standard) or 4.10s. I think, for a short run, you could get 3.42s in the 2WDs. The Suburbans and Yukon XLs got 3.73s standard, both 2WD and 4WD, with 4.10s being an option on both.

05-06s were a little different. Tahoe/Yukon 2WD still had 3.23 and 3.73, while the 4WDs changed to 3.42 standard with 4.10s being an option. Suburban/XL went to 3.42 standard on both 2WD and 4WD, with 4.10s being an option on both.

This is for the 1/2 tons. The 2500s always had 3.73s standard with 4.10s being optional.

 

[chip]

To add:

99-04 Tahoes and Yukons could be ordered with different gears depending on what drivetrain it had. 2WDs could get 3.23s (standard) or 3.73s (optional). The 4WDs could be ordered with 3.73s (standard) or 4.10s. I think, for a short run, you could get 3.42s in the 2WDs. The Suburbans and Yukon XLs got 3.73s standard, both 2WD and 4WD, with 4.10s being an option on both.

05-06s were a little different. Tahoe/Yukon 2WD still had 3.23 and 3.73, while the 4WDs changed to 3.42 standard with 4.10s being an option. Suburban/XL went to 3.42 standard on both 2WD and 4WD, with 4.10s being an option on both.

This is for the 1/2 tons. The 2500s always had 3.73s standard with 4.10s being optional.

May I ask how you posess all this knowledge? I am impressed.

.

 

[scarpi]

My 02 has the 4.10 from the factory.

 

[Venom One]

'05 Yukon XL with 4.10s

 

[Marv02]

2001 Yukon XL 4X4 4:10's Now I understand why I am turning around 2300 RPM's at 70 MPH.

 

[Epik]

Sorry to hijack, but Is this the sticker you are talking about? I'm sure my Z71 came with 3.73's, but just thought I would check....

 

[Big Buttons]

Sorry to hijack, but Is this the sticker you are talking about? I'm sure my Z71 came with 3.73's, but just thought I would check....

Yes that is the sticker. You have the GT4 (3.73)

 

[Epik]

Yes that is the sticker. You have the GT4 (3.73)

Thanks! & the G80 means what again? Limited slip diff right?

 

[YukonXL04]

G80 is a factory locker... And word on the street is it is prone to breaking... I have it as well. 3.73's and the g80 have been good to me so far.

 

[Epik]

G80 is a factory locker... And word on the street is it is prone to breaking... I have it as well. 3.73's and the g80 have been good to me so far.

Thanks. Hopefully mine will be ok, my rig has a ton of miles on it (216k)