[DeTomaso] Handling Problem

[JDeRyke at aol.com]

In a message dated 7/30/09 9:57:49 AM, artstephens at verizon.net writes:

> The circumference only differed by about 7/16".  I had never experienced 
> this before,  would the same thing happen on a vehicle with a live rear 
> axle?
> 
Yes- and its good you found it early. Different rear tire diameters cause 
the ZF limited-slip clutches to wear constantly. Hopefully your diff is still 
a limited slip! Note this also happens when a stock collapsible spare, or a 
gas-station emergency tire is mounted and driven very far. 
To check your LSD: jack up one wheel, put a torque wrench on a lug nut and 
see how much torque it takes to break the raised wheel loose. It should be 
25-50 ft-lbs. A nice tight four-clutch-disc ZF limited-slip will break away 
at around 70 ft-lbs and is one source of severe understeer in Panteras that 
have this (unmarked) diff installed. Good luck- J Deryke


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