Can someone tell me where to read about gear changing? I'm not sure I have to do it. On a 2000 Suburban LS 2WD, changed the tires to 33's with 17" wheels.
your glove box, u will see a list of codes, you will have to find a website that tells you what each code means, you most likely have 3.73 meaning you dont need new gears but it wouldnt hurt to double check
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