[DML] Grinding

["Payne" <bpayne@xxxx>]

I'm puzzled by a grinding my transmission is making. It's suffering
symptoms of plastic clutch line syndrome, even though I replaced it with the
stainless braided one. The transmission performs flawlessly when it's cold,
but when it get's hot it will grind downshifting to fourth. It's only
downshifting though, I can upshift to fourth with no grinding or resistance
whatsoever even when it's hot. At first I thought it may be a worn synchro
but if that were the case then wouldn't it grind shifting up or down, hot or
cold? I've tried matching revs and even double-clutching, but it still
grinds no matter how creatively I downshift. I can however avoid it by
shifting from fifth to third and then fourth, but I can't do this at high
speeds very easily. Anyone have any ideas of what to try? I have the
stainless fluid line and my slave cylinder doesn't appear to be leaking at
all. And again, the transmission is flawless when cold. The car has had a
new centerforce clutch at 56,000 miles and it has 61,000 now.

Also, I was going to change the transmission fluid (I doubt it will help,
but I don't know when it was last done) but no place around here carries the
oil recommended by the repair manual. What would be the best brand and
weight to use?

Thanks everyone!

payne
#2975