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Reply to "auto cross ???"

I suggest you pick up the whole Carroll Smith series, "Tune to Win, "Engineer to Win" etc. What you may be getting is bump-steer. The fix is easy (shil=ms under the sterring rack to slightly lower it, with longer metric bolts to acceptthe shims). but finding out exactly how much shim to use is tedious (hint-it'll be around .300" thick for most). Our Pantera pushed horribly until we found that ZF used two different posi units and one was much tighter than the other. Guesswhich one we had? Jack up a rear wheel & put a torque wrench on a lug nut. The torque required to break the posi-clutches loose will tell you how tight the thing is. FYI, 40 ft-lbs is an average, 15 is worn out and 60-70 is the 'tight' unit that causes push.
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