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Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

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  #1  
Old October 13th, 2015, 06:04 PM
bigred1 bigred1 is offline
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Default rear end lubrication

want to change the rear end fluid for my 1963 gmc pickup, 305 4 speed, 3/4 ton. What type of lubricate should I use?
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Old October 13th, 2015, 06:14 PM
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FetchMeAPepsi FetchMeAPepsi is offline
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Default Re: rear end lubrication

Lots of guys use regular Wal-Mart gear oil. Jay Leno recommends to use RedLine oil in older vehicles. From my notes, here's the type for our trucks.

57904 Red Line 75W90 GL-5 Gear Oil Rear End 1.3 Quarts each Front and Rear (2.6 pints) (41.6 oz)
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Old October 14th, 2015, 03:24 AM
Clarke Clarke is offline
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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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