TRACTION CONTROL

ECMnut at aol.com ECMnut at aol.com
Thu Nov 12 13:42:49 GMT 1998


The early quadratracs were like a posi-clutch-pack inside a X-fer case.
More recently (V8 Cherokee), they appear to use a viscous coupling,
ver similar to AWD Astro-Syphoon units.  All of the above made for
OEMs by BorgWarner.
MV

> 
>  Jeep mechanically does something similar in the transfer case and in each
>  differential with its Quadratrack II (tm) system.  Instead of stopping
>  one of the wheels, it employs a cluch between the axles (in the axle) or
>  between the driveshafts (in the transfer case).  When a difference in
>  speed is detected, the cluch is engaged, limiting the slip or locking the
>  axle or transfer case.



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