I would say you are very premature on the gear oil change, every 2k you can
go 20k. and it will be fine.especially with trac-lok.
----- Original Message -----
From: "Will Coughlin" <willcoughlin@hotmail.com>
To: <dakota-truck@buffnet.net>
Sent: Saturday, November 24, 2001 10:03 PM
Subject: Re: DML: Synthetic Gear Oil
> I am running Valvoline SynPower full synthetic 75w-90 in my 9.25" 3.92
> sure-grip equipped differential. I use 2 bottles of Mopar limited slip
> additive/friction modifier along with 2 bottles of the gear oil for a
> change. I change it every 2000 miles when I do the rest of my maintenance.
> My sure-grip unit seems to be as effective as any other one I've seen and
> makes little to no noise with the 2 bottles of additive in it.
Differential
> stays nice and clean with very little wear to the gears or sure-grip unit
> with the fluid and my maintenance intervals. HTH,
>
> Will Coughlin willcoughlin@hotmail.com
> '00 reg.cab,2wd,4.7L/NV-3500HD5-spd/3.92sg(9.25")
> http://www.geocities.com/willcoughlin/index.html
>
>
>
> ----Original Message Follows----
> From: Packed318@aol.com
> Subject: DML: Synthetic Gear Oil
> Date: Sun, 25 Nov 2001 00:48:12 EST
>
> Has anyone changed to Synthetic gear oil in a 9 1/4 with a sure grip? If
> so,did you use any additive? I use my truck primarily for drag racing and
I
> am about to change the fluid. I would like to use Synthetic but I don't
> want to do anything to hurt the sure grip.
>
> Thanks,
> Wayne
>
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