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Old October 14th, 2015, 03:24 AM
Clarke Clarke is offline
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Join Date: Jan 2013
Location: Eureka Springs, AR
Truck: 1962 1500 Wideside 4 speed (305D / SM-420)
Posts: 217
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Default Re: rear end lubrication

I've been using 75W-140 syn for years in all my rear ends that I tow and/or off-road with. It's a amazing how warm those rear ends get, that's why I use the heavier weight, plus the extra load/pressure.
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