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DIAGNOSIS AND TESTING REAR AXLE - 8 1/4 GEAR NOISE Axle gear noise can be caused by insufficient lubricant, incorrect backlash, incorrect pinion depth, tooth Gear noise usually happens at a specific speed range. The noise can also occur during a specific type of driving When road testing, first warm-up the axle fluid by driving the vehicle at least 5 miles and then accelerate the Insufficient lubricant. Incorrect ring gear backlash. Gear damage. Differential side and pinions gears, usually do not cause noise during straight-ahead driving, when the gears are BEARING NOISE Bearing noise can be either a whining or a growling sound. Pinion bearings have a constant high pitch noise, because it rotates at a faster rate. This noise changes with Differential bearings usually produce a low pitch noise. The differential bearing noise is constant and varies Axle shaft bearing noise generally changes when the bearings are loaded. Turn vehicle sharply to the left and LOW SPEED KNOCK Low speed knock is generally caused by: Worn U-joints/CV joint. Worn side-gear thrust washers. Worn pinion shaft bore.
2007 Dodge Nitro R/T 2007 DRIVELINE Differential & Driveline - Nitro
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