Hint: Use a descriptive title for your new message If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. In other words, "2008 LaCrosse" isn't going to indicate to anybody that you need help. However, "Need help with my 2008 LaCrosse" will. Be as descriptive as you can. Please use common sense... This message can be closed by clicking the X in the top right corner.
You can also jack up the rear of the car, place a chalk mark on the driveshaft and with the car in neutral, parking brake released, rotate a rear tire one complete turn while counting how many times the driveshaft turns. 3 turns would be the 2.93 ratio.