<VV> Dexron in brake system (logic mixed with humor)

[Tony Underwood]

At 07:59 hours 02/27/2006, Frank DuVal wrote:
>Back in the 60's Chrysler Corp used ATF in their 3 speed 
>trannies.  Alot of front wheel drive manuals use ATF.
>
>Frank DuVal



The ATF in the gearbox was Chrysler's way to make their rather robust 
manual gearboxes (such as the A833 4-sp) shift a little easier, 
especially in colder climates when the chill would make a gearbox 
shift like it was filled with tar.

Later, Chrysler sent down a memo that the big gearboxes, especially 
those behind stronger V8s, were to be drained and refilled with gear 
lube whenever a car fitted with an ATF-filled gearbox came in for 
service.    Excessive wear and gear crunch were unacceptable results 
in gearboxes using ATF especially when hi-perf engines were in front 
of them.   Later gearboxes that were designed to use lighter gear 
lubes will work well with ATF.   Chrysler has a gear lube now that's 
used in their transaxles which is about the same weight as ATF but 
looks and smells like standard gear lube.


On a lighter note:

My Yugo has a tag that specifies 10w-30 motor oil in the 
transaxle.   124,000 miles, transaxle still in good shape... although 
it uses no hypoid gears, so I would imagine that motor oil may well 
work out OK there since the car weighs almost nothing and has a 
sewing machine for an engine... or maybe the Serbs simply didn't have 
easy access to gear lube...?

However, the Vairs still get std weight gear lube in their transaxles.


tony..