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At work, we have to battle with the same issue
in wet-disc brake systems as well. The additive changes the "slip stick"
characteristics of the fluid (and of the friction material).
Galen
----- Original Message -----
Sent: Tuesday, July 01, 2003 6:37
AM
Subject: [Chevelle-List] Q: Positraction
Chatter?
Found this article & it really hits the
nail!!
"Anyone who
has been involved with four-wheel-drive vehicles has probably heard of or
experienced positraction (posi) "chatter". Posi chatter is noise that is very
recognizable and happens when there is too much friction in the clutches. Some
hardcore offroaders set up their posi this way intentionally. The noise sounds
like someone is pounding on the rearend with a huge sledgehammer. It is most
prevalent when backing up in a parking lot (when everyone around can stare),
and gets worse as the differential heats up. It also tends to show up on
freeway off-ramps and when turning while taking off from a stop
sign."
Best Regards
Pelle
Andersson
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