Gears

[madstyle1]

what are good gears and what kind of brand are the best? Where can i get for a reasonable price..

[pm26]

what are good gears and what kind of brand are the best? Where can i get for a reasonable price..

If you intend to change the gear ratio in your axle(s), and your truck is still under the 100k mile powertrain warranty, you must use genuine GM gears to maintain your warranty coverage.

[L76PWRD]

What engine do you have, transmission & stock gears?

[lsuguy]

Yukon is a very reputable brand and Rons machining has amazing service and prices from what I hear.

http://stores.ebay.com/RONS-MACHINING-SERVICE

[madstyle1]

stock 2009 gmc sierra, 5.3L 4 speed? stock gears

[L76PWRD]

stock 2009 gmc sierra, 5.3L 4 speed? stock gears

 

 

Well for stock gears there was a lot of different choices, you need to check the RPO codes.

3.73 & 4.10 gears are great, I got 3.73 gears but thinking of adding 4.10 gears.

 

RPO codes are:

 

GU2 = 2.73 Ratio

GU4 = 3.08 Ratio

GU5 = 3.23 Ratio

GU6 = 3.42 Ratio

GT4 = 3.73 Ratio

GT5 = 4.10 Ratio