Referring to the top example above, the first letter in the code G denotes the ring gear diff size of the rear axle. In this case, it is an 8 ring gear. The second and third digit, both numbers 29 refer to the gear ratio.
3. Lemon Juice. Naturally acidic, lemon juice has been shown to increase citrate levels in the urine, a factor that discourages kidney stones from forming. For a quick lemon kidney cleanse, squeeze 4-5 lemons into a quart of cold water and drink up. Or, for a warming beverage, squeeze one quarter to one half a lemon into 8 ounces of hot water daily.
Because foods are not known to alter the pH of your blood or body, lemons won't acidify you either. Drinking lemon juice with water may increase the acid level of your urine, however, which is a sign that your kidneys are doing their job -- ridding you of excess acid.