With my 3:73 gears the 1/3 throttle downshift is annoying. I bought the B&M valve, but have yet to install it. I am worried that if i drain the fluid and install the valve, the dam trans will puke. It is best to leave it alone with this many miles? The trans shifts well i have no problems except for me wanting to put this valve in.

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• 89 Formula 305 WS6
  SFC's, LCA's, Air Foil
  Spohn Panhard Bar
  Flowmaster Cat Back, Tranny Cooler
  A/F Ratio Meter (not a mod but it sure spurs interest)
  Trans Temp Gauge
  Most "Free" Mods
  3:73, Zexel Torsion Posi
  !cat
  CAI W/ K&N
  
  15.559 @ 88 MPH
  (Not good enough)

 

The valve itself shouldn't hurt anything; are you worried about changing the fluid? Some guys say on a trans that's been ignored, it's better to run with the old fluid, because the old stuff has pieces of clutch floating around in it. I don't know if that's true or not...?


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Thats what i have heard. I was going to change the fluid when i got the car, but decided against it when i heard about the fluid issue. I have installed a trans cooler and i know that the previous owner took very good car of the car, but i am still a little worried... a new trans is not possible at this time.

 

That goes back to the days of Type F oil where the oil would turn to varnish. New oil is very high in detergent and would wsh off any gunk and..... next thing you know everything is hanging up and the tranny fails.

 

i was told that you shouldnt change the tranny oil after 70-75000 miles on it b/c of that point of the clutches .

 

So the verdict is....

 

i let you know what happens in a couple of weeks. i just changed the fluid in my tranny with 92,000 miles on it and it was pretty nasty lookin

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91 Z28 slp headers adj reg accell cap rotor coil comp cam roller
random tech cats flowmaster catback
new motor in

 

If the oil is fairly clean and trans is working OK then it should be OK. Just remember to take the old seal out of the case before you put the new one in.

[This message has been edited by transfixleo (edited August 08, 2001).]