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Synthetic Rear Axle Lubricant recommended by Mother Mopar!

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performance upgrade

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Reading my son's 1999 RAM Pickup owner's manual, I came upon this: "If you plan to pull a trailer for a significant number of miles, reduce the potential for rear axle overheating by replacing the rear axle lubricant with an SAE 75W-140 synthetic gear lubricant. Mopar synthetic Gear Lubricant is of this type. "
Guess that answers the old "if synthetics were better, Chrysler would use them" statement, huh? Mother MOPAR knows they're better, but REALLY wants you to get past the warranty before your axles go!

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http://coffeewithJesus. homestead.com/web1.html 89 1-ton, Amsoil System 3000 5-30,K&N air filter, cleaned-up exhaust, Dynomax straight-thru, rebuilt pump, 12cm wastegated turbo, thermostaticly controlled twin 14" electric fans, intercooler, modified 518 OD transmission, Gear vendors OD controler, R-134, louvered fenders, 93 aftermarket smoothe grille; 78 35'Avion, 93 Lance 900 slide in with generator and power jacks. Jesus saves!
 
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My '93 owners manual says the same thing.
Knowing these truck would get worked they should have splurged and put in the synthetic at the factory. The extra cost (Chrysler would get a HUGE discount on the oil) would get buried in the $30,000+ price tag.

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'93 W350 Club Cab, Bright White, 5 sp. , 132K, Factory Options: LE, 4. 10 Limited Slip, 7600 lb. rear springs, tachometer, front stabilizer bar. Mods: Banks stinger plus, Linex bedliner, 25,000 lb gooseneck ball, 10,000 lb receiver, Tekonsha brake controller, POWER WAGON injectors-WAY faster than stock!.
 
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