Lubrication application question....non-ThirdGen GM 4WD
11-02-2002, 02:32 PM
#1
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Lubrication application question....non-ThirdGen GM 4WD
Any idea what lubricant is supposed to go in the front axle of a 2000 Astro AWD?
I'm draining all the fluids for the 30K service, and the manual doesn't really clearly state the required fluid. All I can tell is that it isn't gear oil (so no Mobil 1 in that end).
I know the transfer case is GM Auto-Trak II (got that) and the read axle is AGMA/API GL-5 (got that in Mobil 1 syn), and of course the transmission is Dexron III (got synthetic for that, too), but I'm not sure the red stuff in the front axle is Dexron or another proprietary oil like the Auto-Trak II. Any help?
As a side note, in case you didn't know, there is an INTERNAL GM TSB on the transfer case oil. It seems that some transfer cases are prone to shudder on accelreation, and the "fix" is to change from the original Auto-Trak to the newer Auto-Trak II ( at $7.80/quart - ouch). The new stuff was the production fill on 2002 vans and newer. That bites for me.
I'm draining all the fluids for the 30K service, and the manual doesn't really clearly state the required fluid. All I can tell is that it isn't gear oil (so no Mobil 1 in that end).
I know the transfer case is GM Auto-Trak II (got that) and the read axle is AGMA/API GL-5 (got that in Mobil 1 syn), and of course the transmission is Dexron III (got synthetic for that, too), but I'm not sure the red stuff in the front axle is Dexron or another proprietary oil like the Auto-Trak II. Any help?
As a side note, in case you didn't know, there is an INTERNAL GM TSB on the transfer case oil. It seems that some transfer cases are prone to shudder on accelreation, and the "fix" is to change from the original Auto-Trak to the newer Auto-Trak II ( at $7.80/quart - ouch). The new stuff was the production fill on 2002 vans and newer. That bites for me.
11-03-2002, 03:59 PM
#5
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Originally posted by gmgod
Was it the synchromesh stuff?
Was it the synchromesh stuff?
Needless to say, it got the M1 gear oil, and I won't be going back there any time soon. Then again, I hope I won;t be moving again for a while. What a PITA...
11-04-2002, 01:32 PM
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Car: 82 Berlinetta/57 Bel Air
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Re: Lubrication application question....non-ThirdGen GM 4WD
Originally posted by Vader
...another proprietary oil like the Auto-Trak II. Any help?
As a side note, in case you didn't know, there is an INTERNAL GM TSB on the transfer case oil. It seems that some transfer cases are prone to shudder on accelreation, and the "fix" is to change from the original Auto-Trak to the newer Auto-Trak II ( at $7.80/quart - ouch). The new stuff was the production fill on 2002 vans and newer. That bites for me.
...another proprietary oil like the Auto-Trak II. Any help?
As a side note, in case you didn't know, there is an INTERNAL GM TSB on the transfer case oil. It seems that some transfer cases are prone to shudder on accelreation, and the "fix" is to change from the original Auto-Trak to the newer Auto-Trak II ( at $7.80/quart - ouch). The new stuff was the production fill on 2002 vans and newer. That bites for me.
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