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3772661
3772661
excessive lubrication results in the lubricant working out into the brake drums and linings Front wheels of all passenger car models are equipped with roller bearings and should be packed with a high melting point water resistant front wheel bearing lubricant CAUTION Do not mix wheel bearing lubricants Be certain to thoroughly clean bearings and hubs of all old lubricant before repacking The proper adjustment of front wheel bearings is one of the important service operations that has a definite bearing on safety A car with improperly adjusted front wheel bearings lacks steering stability has a tendency to wander or shimmy and may have increased tire wear The adjustment of these bearings is very critical The procedure is covered in Section 3 of this manual under Front Wheel Bearing Adjustment UNIVERSAL JOINTS The universal joints are lubricated and sealed at the factory It is recommended that they be disassembled cleaned and lubricated every 25 000 miles with a high melting point wheel bearing type lubricant TRANSMISSION AXLE ASSEMBLY STANDARD TRANSMISSION ASSEMBLIES Recommended Lubricants Since both units are connected by internal passages SAE 80 Multi Purpose gear lubricant must be used CAUTION Straight Mineral Oil gear lubricants or any lead soap active sulphur lubricants must not be used G M No 3772661 SAE 80 is recommended for year around use Lubricant Additions The lubricant level in these units should be checked periodically every 1000 miles To check trans axle unit check first at the axle fig 2 8 if low also check the transmission fig 2 9 When checking lubricant level both units should be at operating temperature With unit at operating temperature the lubricant should be level with bottom of the filler plug hole If the lubricant level is checked CHECK lIIJJJ 1 DRAIN Fig 2 8 Checking Axle Lubricant with the unit cold the lubricant level should be 1 z inch below the filler plug hole Lubricant Changes or Refill Drain out the original lubricant at the end of the first 1000 miles and every 10 000 miles thereafter When both units have been emptied for one reason or another lubricant must be added to each unit After refill 5 pints total check level at both units CHECK t DRAIN Fig 2 9 Checking Transmission Lubricant Multi Purpose Gear Lubricants Gear lubricants that will satisfactorily lubricate hypoid rear axles have been developed and are commonly referred to as Multi Purpose gear lubricants Multi Purpose gear lubricants must be manufactured under carefully controlled conditions and the lubricant manufacturer must be responsible for the