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02-20-2013, 09:46 PM
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#1 |
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Registered User
Join Date: Apr 2011
Location: greenville sc
Posts: 558
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changing diff fluids in 87 front and rear is 89021671 gm fluid correct?
I have heard it is correct but not for both front and rear this correct? and mine does not have the G80 limited lock option so I don't need the additive correct? thanks
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02-21-2013, 01:38 AM
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#2 |
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In the Forgotten far North.
 
Join Date: Jul 2007
Location: Anchorage, Alaska
Posts: 2,627
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Re: changing diff fluids in 87 front and rear is 89021671 gm fluid correct?
This past December I serviced both axles using GM's Synthetic 80w90 gear oil. Part # 88900401. It ain't cheap @ $35.00 a qt. and 3 qt's per axle but I figure since it's what GM recommends for the majority of their vehicles these days I might as well go ahead and upgrade to it.
Oh did I mention I work in the parts dept of a GM dealership?
__________________
1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade |
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