They are made by Dana in Toledo I believe.
Mark Kuzia
flyboy01@mediaone.net
http://people.mw.mediaone.net/flyboy01/home.html
1995 Dakota 13.79 @ 102.45 mph
~360ci, 5-spd, 8 3/4 rear / 3.90-SG
1994 Dakota 15.36 @ 91.56 mph
~318ci, 5-spd, 3.90 LS (bone stock, no mods)
----- Original Message -----
From: "Shane Moseley" <smoseley@ix.netcom.com>
To: <dakota-truck@buffnet.net>
Sent: Saturday, July 28, 2001 12:41 PM
Subject: DML: Dana 60 and 9.25 Comparison
> Now how about a comparison/inclusion of the corporate 9.25? I've been
> looking for info like axle shaft thickness differences between late-model
> 9.25 variations. For example, I have 2 extra 9.25 rears in my garage - 1
is
> a 3.55 peg leg from a '99 ram truck and 1 is a 3.92 peg leg from a '98
> 3/4-ton ram van. The 2 are identical externally except for the spring and
> shock mounts and more importantly the axle shaft tubes which start out the
> same diameter at the pig but neck down much smaller at the wheel end on
the
> ram rear and they are not on the van rear. Van rear is same tube diameter
> all the way from the pig carrier to the brake mounting brackets at the end
> and is about 7 inches shorter brake mounting pad to pad. This means that
> the axles and the bearings are much larger. The axles being over 3 inches
> shorter ea. probably even makes them stronger.
>
> Most everything I've found covers older models only.
>
> Also - ever noticed how similiar the 9.25 and Dana rears are? They even
> look almost the same.
>
> Thoughts?
>
> Latr,
>
> Shane
>
> "Kenneth M. Berntsen" wrote:
>
> > Thankyou professor Kuzia :)
> >
> > -----Original Message-----
> > From: Mark Kuzia [mailto:flyboy01@mediaone.net]
> > Sent: Friday, July 27, 2001 11:20 PM
> > To: dakota-truck@buffnet.net
> > Subject: DML: Re: Correction to: Bolt in Dana 60 rear with Disk brakes
> > for Daks
> >
> > >From: "Kyle Kozubal"
> > > A 'stock' Dana 60 has a 9.75" ring gear. The axle splines will vary
> > from
> > 30
> > > splines to 35 splines. A typical 30 splined Dana 60 can handle 6,200
> > pounds
> > > while a 35 splined Dana 60 can handle 9,600 pounds. Normal 30 splined
> > Dana
> > > 60s have axle shafts which are 1 5/16 thick, while the HD 35 splined
> > Dana
> > > 60s have a 1 1/2" axle shaft. They currently use Dana 60s on trucks
> > with a
> > > gross weight rating over 16,000 pounds. Dakota are what.....like
> > 4000-4500
> > > pounds?
> >
> > Actually a small correction here..........................
> >
> > Class is in session.
> >
> > When an axle is rated in pounds, it does not mean the weight of the
> > vehicle,
> > it means torque multiplication.
> >
> > For example:
> >
> > Let say you have a Dakota with a 408 that puts out 500 lbft of torque at
> > 4000 rpm's, you are running a 5-speed, and have a 30 spline Dana 60 with
> > a
> > 4.11 gear in it.
> >
> > Multiply Torque (500), by first gear ratio (3.35), and then by rear gear
> > ratio (4.11).
> >
> > 500 x 3.35 x 4.11 = 6884.25
> >
> > That is 6884.25 lbft of torque to the axle. The 30 spline axle is rated
> > at
> > 6200 lbs, this is clearly not strong enough to withstand the torque, you
> > would need a 35 spline in that case. This is an extreme case but
> > feasable
> > with pefect taction, or Matt. This is why many 8 1/4's break under
> > 5-speeds
> > and work fine under automatics. An auto will pre load the axles and
> > gently
> > launch, where a 5-speed will shock the axles and cause them to snap.
> >
> > Mark Kuzia
> > flyboy01@mediaone.net
> > http://people.mw.mediaone.net/flyboy01/home.html
> > 1995 Dakota 13.79 @ 102.45 mph
> > ~360ci, 5-spd, 8 3/4 rear / 3.90-SG
> > 1994 Dakota 15.36 @ 91.56 mph
> > ~318ci, 5-spd, 3.90 LS (bone stock, no mods)
>
> --
> '96 IndyRam-HisIndy-MPI TB Pulleys RTcam MPComp HVoilpump
> DynaGearDoubleRoller WindageTray CompTAs
> '96 IndyRam-HerIndy-numbered(#142)"Track Truck"
> '74 Triple-Black Dodge Challenger Rallye 360 EFI R&D vehicle
> '93 Dakota CC 318 - soon to be mine 8)
>
>
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