Types of differentials/Traction aiding devices

[Pat Ford]

Previously, you (Todd....!!) wrote:
> OK, sounds like an all around GREAT alternative to a spool....

it is

> 
> Better gas mileage, almost as strong, NUTHIN's stronger than a spool...
> right?

for road use yes ( offroad heavy equipment has a few tricks)

> 
> Where does the air go into the rear gear area, and what creates the air
> pressure? Some sorta pump, I assume?

it looks like a air shock compressor, the actuator is in the diff

> 
> What all rearends is this technology built to accomodate?
> 
> May it be applied to an 8 3/4 or Dana 60, or even a Ford 9 incher?

http://www.rockequipment.com/diff.htm

> 
> Just wonderin.....
> 
> Todd....
> 
> ------
> 
> Pat Ford wrote:
> > 
> > Previously, you (C. Brooks) wrote:
> > > That's a good question. I don't know but to put a little perspective on
> > > this...
> > >
> > > One of the club members has a Toyota truck with a mild 383, TH350 tranny,
> > > Dual Marlin crawler transfer case both with 4.7:1 gears, and Dana axles (60
> > > rear, 44 front) with 5.?:1 gearing, and 36" swampers. I've seen him use
> > > (Abuse)  this truck pretty hard. The final drive ratio in first gear low
> > > range is well over 200:1. That's ALOT of torque multiplication, and he's
> > > never had an ARB fail (YET!)
> > 
> > they are strong
> > 
> > >
> > > Having the diff locked won't make any difference in mileage.
> > 
> > it does, no road is straight enough and no 2 tires are exactly the same dia.
> > if I lock the dif the top speed does down and the fuel just pours into the engine
> > 
> > >
> > > Charles Brooks
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Todd....!! <atc347 at c-com.net>
> > > To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> > > Date: Wednesday, June 02, 1999 8:20 PM
> > > Subject: Re: Types of differentials/Traction aiding devices
> > >
> > >
> > > >Can ya do a W.O.T. launch with the button OFF, then turn it on in the
> > > >middle of the launch, under FULL TORQUE?
> > > >
> > > >Just how strong is this unit?
> > > >
> > > >AND, would a car with one of these air posi's get better gas mileage
> > > >with the posi OFF than it would with the air-posi on?
> > > >
> > > >Just wondrinnnnn.........
> > > >
> > > >
> > > >LATER!
> > > >
> > > >Todd....!!
> > > >
> > > >
> > > >Frederic Breitwieser wrote:
> > > >>
> > > >> > The type of posi is NOT dictated by the type of rear it's in or made
> > > for. There are limited slip, Torsen and locking differentials made for the
> > > Dana 60. If you want to know what type of unit is in the rear you'll have to
> > > actually look at it.
> > > >>
> > > >> And this is not a sarcastic response, either :)
> > > >>
> > > >> I'd highly recommend an ARB airlocker for this rear.  direct bolt in,
> > > >> easy to control with a pushbutton, and totally open when needed.
> > > >>
> > > >> --
> > > >>
> > > >> Frederic Breitwieser
> > > >> Bridgeport CT 06606
> > > >>
> > > >> 1993 Supercharged Lincoln Continental
> > > >> 1989 HWMMV w/turbocharged 500cid Caddy
> > > >> 1975 Dodge D200 Club Cab soon to have 431 stroker + turbos
> > > >> 2000 (I hope) Buick GTP (Mid-Engined Sports Car)
> > > >
> > > >
> > >
> > 
> > --
> > Pat Ford                           email: pford at qnx.com
> > QNX Software Systems, Ltd.           WWW: http://www.qnx.com
> > (613) 591-0931      (voice)         mail: 175 Terrence Matthews
> > (613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8
> 
> 

--
Pat Ford                           email: pford at qnx.com
QNX Software Systems, Ltd.           WWW: http://www.qnx.com
(613) 591-0931      (voice)         mail: 175 Terrence Matthews          
(613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8