David Collins wrote:
> Hi 'Lookers, I'm hoping you folks can tell me what kind/type of trans
> and power steering fluids would be compatable with a '59 DeSoto
> 383. Also, what weight of grease should I use in the rear end? And
> finally...there are little grease cups on my distributor and generator.
> What is supposed to go in those cups and how often?
Car Collector had an article about trans fluid last year. It seems
that Type A fluid is actually its own unique type, of which I have
never seen for sale anywhere.
Type F fluid will give a Type A trans harsher shifts, as it adds more
friction (actually the "F" is for "friction" not "Ford"). Dexron/Mercon
will give a Type A trans softer shifts, as it reduces friction. The
article claims that neither one will hurt a Type A trans.
So, if you want smoother shifts, use Dexron/Mercon. If you want more
of a performance feel, use Type F. Neither is "correct", but neither
will hurt the trans.
I checked with several rebuilders, including Aamco, and none
have seen Type A for sale in the last 25 years. The general
consensus is that any Dexron/Mercon fluid, with a thingy of
anti-foaming agent (available at any GM parts counter), is the best
substitute for Type A. I understand however that some farm &
tractor stores, like Farm & Fleet, carry Type A for tractor use.
I'm betting it's the same.
As far as PS fluid, I use Dexron III and it seems to work just fine.
The rear end, I can't help you on. There should be something in
both the service and the owner's manual. Generally, it seems that
90 weight gear oil is appropriate, unless it's a Sure Grip, which
has a special additive of some sort.
In the grease cups, I've used 90 weight to pretty good success. I
think a slightly thicker oil would be better, but the 90 weight is
fairly good nonetheless. I put it in whenever they start to squeak.
Of course, if I'm wrong about any of these things, someone speak up
please and set me straight! =)
-Dave
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