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 Post subject: front dif oil
PostPosted: Sun Aug 11, 2019 12:34 pm 
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Joined: Thu Dec 07, 2017 7:06 pm
Posts: 41
What oil is suggested for the front diff and how much?

Thanks Neal


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 Post subject: Re: front dif oil
PostPosted: Tue Aug 27, 2019 6:13 pm 
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HELP! Does anyone know what oil to use in the front diff on a 79 4x4
My truck has been sitting for 2 weeks now, cant run it because I do not have any oil in the front diff=(


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 Post subject: Re: front dif oil
PostPosted: Tue Aug 27, 2019 11:11 pm 
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Joined: Wed Sep 06, 2017 6:40 pm
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Location: Blaine, WA
I just finished moving and I can't find my factory service manual right now, so I can't answer your question.

But I can give you a temporary fix - unlock the hubs and shift the transfer case to 2WD only. Everything up front at that point SHOULD remain stationary, or only spin very slowly at most.

But check to make sure the hubs are actually unlocked by grabbing the CV joints and try spinning the axle shafts. They should spin fairly easily.

_________________
1980 4x4 in the process of being grafted onto a 1989 Trooper frame.


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 Post subject: Re: front dif oil
PostPosted: Wed Aug 28, 2019 4:35 pm 
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Location: N W Arkansas
GL-5 gear lube, 90w works for most average temps, use thinner for extra cold, thicker for extra hot. Rear differential uses the same.
Capacity is 1.7 pints, so a single quart bottle will refill. In reality fill until the lube runs out the fill hole with the truck sitting level.

_________________
'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, rough body, bought new 12/4/78.
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch,more to come.


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 Post subject: Re: front dif oil
PostPosted: Wed Aug 28, 2019 11:50 pm 
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Joined: Thu Dec 07, 2017 7:06 pm
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Back on the road again....Thank you very much!!!


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