AX5 / NP231....... Which Fluid to Use - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 02-18-2003, 08:28 AM Thread Starter
 
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AX5 / NP231....... Which Fluid to Use

Well, I'm still trying to gather everything up for the drivetrain fluid change. I'm going to swap fluids in the engine, tranny, transfer case, front axle, and rear axle. I like using Valvoline full synthetic in the 2.5L engine, but was wondering about using a full synthetic in the rest of the drivetrain. I've heard good things about the GM Synchromesh, but it's only a synthetic blend, not a full synthetic.

Anyone here ever used a full synthetic in their whole drivetrain? Is there even a full syntetic available, and if so, what is it called.

Also, how about using the same stuff in the transfer case as you use in the trany and axles. The manual calls for 75w-90 gear oil for the tranny and axles, but it calls for ATF fluid for the transfer case. I've heard of people using the same gear oil in the transfer case, but I don't want to screw anything up if it's gonna happen.
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post #2 of (permalink) Old 02-18-2003, 08:37 AM
 
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Re: AX5 / NP231....... Which Fluid to Use

Factory recomends the ATF. The rebuilders recomend ATF. Maybe that would be a good choice [img]images/graemlins/grin.gif[/img]

Yep others have used other types of fluids but I don't recall what was used.
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post #3 of (permalink) Old 02-18-2003, 11:24 AM
 
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Re: AX5 / NP231....... Which Fluid to Use

ATF DEXTRON OR PLUS III IN T-CASE
Gear lube with a GL3 rating in the AX 5
Full syn in the diff's is ok
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post #4 of (permalink) Old 02-18-2003, 02:56 PM Thread Starter
 
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Re: AX5 / NP231....... Which Fluid to Use

Anybody ever use the Royal Purple brand of synthetics? From my research, they make everything I would need to re-lubricate my drivetrain. It's kind of expensive though, but it sounds like it would pay off in the future [img]images/graemlins/RockOn.gif[/img]
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