>Max speed of 4H is 55 MPH any higher than that and stuff starts to break,
I've gone considerably (about 70 mph) faster than that without ill effect,
but it was on a smooth gravel road, not a sticky asphalt dragstrip.
What really matters is that there's some 'give' somewhere in the system
to allow for differences in wheel speed. The Dak 4WD system has no
built-in slack front-to-rear, so you'll lunch the xfer case by driving
on asphalt for very long [although the 231 is a strong box, and will
survive a fair amount of abuse].
If the MileMarker site is any guide, they no longer sell the viscous
coupler, so you're best option is to put a Grand Cherokee full-time
xfer case in your truck. That's a very expensive route (as in $thousands).
Jim
P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--
Dakota: The Right Caliber of Dodge Magnum Force!
-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP-P--P-PP
1993 Emerald Green V8 4x4 CC K&N, Accel Coil, Bilsteins, Redline synthetics.
Tread Lightly on Public and Private Lands -- Abuse it and we'll lose it!
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