It's really better to pull the diff cover and drain it that way. Then you can
inspect the gears while you're in there and clean out any metal shavings, water,
etc.... that has managed to work it's way in there.
Henry Hagemeier wrote:
> I think I am reading this right. That the modifier should be added to the
> lube. Here is the quote from the DAK 2000 manual.
>
> Rear Axle
> Limited-slip differentials require the use of a friction control additive.
> Mopar Hypoid Gear Oil Additive Friction Modifier is a material of this type
> and is recommended. This should be added to the gear lubricant whenever a
> fluid change is made.
>
> So I take it that the fluid Mopar sells should be added to the GL-5 lube?
> However, if the Mobil 1 does the job without the Mopar Hypoid Gear Oil
> Additive Friction Modifier, that would be great. So I guess I just take out
> the rubber plug on the differential and use a suction gun to empty the
> differential then pour in the Mobil 1?
>
> Thanks,
> Henry Hagemeier
> San Antonio
>
> -----Original Message-----
> From: owner-dakota-truck@BUFFNET.NET
> [mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of Mike Klinke
> Sent: Sunday, May 21, 2000 10:23 AM
> To: dakota-truck@buffnet.net
> Subject: DML: Re: LSD Oil Change Questions
>
> The common wisdom in the mechanical circles I've frequented say that if you
> use a GL-5 synthetic, Mobil 1 for example, then the friction modifier isn't
> necessary. I ran a LSD in a Dana 35c rear axle on my Jeep using only Mobil 1
> and it worked just fine. Does the manual really say to use both?
>
> The friction modifier is available at the dealers here locally in Dallas.
>
> Regards, Mike Klinke
>
> -----Original Message-----
> From: Henry Hagemeier <jhhagemeier@Msn.com>
> To: dakota-truck@buffnet.net <dakota-truck@buffnet.net>
> Date: Sunday, May 21, 2000 9:31 AM
> Subject: DML: LSD Oil Change Questions
>
> >HI all,
> >I need to change the oil in my Dakota's rear axle. The manual calls for
> >75W-90 Multipurpose GL-5 and Mopar Hypoid Gear Oil Additive Friction
> >Modifier.
> >
> >My questions are... What is a good brand for the GL-5 and the Hypoid
> >Friction Modifier? Also, what ratio should I mix them at?
> >
> >I was also surprised to find that the filler hole plug is just a rubber
> plug
> >and not a threaded hole. It is a 2000 Dak with the 4.7.
> >
> >
> >Thanks for the help.
> >
> >Henry Hagemeier
> >San Antonio
> >
> >
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