200K - How Much Longer Might this 700R4 Last?
10-31-2009, 09:50 PM
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Car: 84 Firebird: F41, Pwr, Instr Pkg
Engine: LC1 (V6 2.8L, 200k mi)
Transmission: MD8 (700R4)
Axle/Gears: GU5 (3.23)
200K - How Much Longer Might this 700R4 Last?
I've got an '84 Fbody, 2.8L V6 with the original 700R4. It has almost 200k mi. Fluid is drained about once every 2 years along w/ filter. Fluid always retains clean/red color and never smells burnt. It's predominantly hwy driven though not exclusively, no towing, etc.
Q: How much longer might I expect it to last? To 250k? More?
Q: What would be the eventual symptoms to keep an eye out for? Slippinig?
Q: Anything I should consider to help keep it healthy? (beyond adding a cooler)
Q: Which line out of the radiator is the RETURN line back to the trans?
thanks!
Q: How much longer might I expect it to last? To 250k? More?
Q: What would be the eventual symptoms to keep an eye out for? Slippinig?
Q: Anything I should consider to help keep it healthy? (beyond adding a cooler)
Q: Which line out of the radiator is the RETURN line back to the trans?
thanks!
11-03-2009, 06:41 PM
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Car: 1980 Regal
Engine: 383 Superram
Transmission: 700R4
Axle/Gears: 12 bolt w/ 3.31 posi
Re: 200K - How Much Longer Might this 700R4 Last?
Mine has 239, 420 on it and never been cracked open. Except to change the fluid and filter.
11-03-2009, 07:00 PM
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Car: 86' IROC-Z....and 5 other 3rdgens
Engine: 383 hsr
Transmission: built 700r4
Axle/Gears: stock 3.23, 10bolt
Re: 200K - How Much Longer Might this 700R4 Last?
iv blown mine to pieces after 2 years of driving lol. the cause?? slow tranny leak unoticed 
11-03-2009, 08:34 PM
#5
Re: 200K - How Much Longer Might this 700R4 Last?
Im on my 4th 700R4 ... they get hot they go boom. You run burnt fluid...they go boom lol. You have very little leeway on a tranny that old.
Keep your TV cable in line (should be good now unless you messed w/it) But in your application I would figure the phrase "buy cheap, change often" is your best friend. Maybe it will outlast your engine.
Keep your TV cable in line (should be good now unless you messed w/it) But in your application I would figure the phrase "buy cheap, change often" is your best friend. Maybe it will outlast your engine.
11-03-2009, 08:38 PM
#6
Re: 200K - How Much Longer Might this 700R4 Last?
Im on my 4th 700R4 ... they get hot they go boom. You run burnt fluid...they go boom lol. You have very little leeway on a tranny that old.
Keep your TV cable in line (should be good now unless you messed w/it) But in your application I would figure the phrase "buy cheap, change often" is your best friend. Maybe it will outlast your engine.
Keep your TV cable in line (should be good now unless you messed w/it) But in your application I would figure the phrase "buy cheap, change often" is your best friend. Maybe it will outlast your engine.
i go again.
11-04-2009, 05:32 AM
#7
Re: 200K - How Much Longer Might this 700R4 Last?
I was on my 2nd tranny for 700r4. it is still good btw well :P sold now. But flywheel junked. I just got away from it completely. Went to WC borg warner T5. Just because the rebuild kits for them are cheaper and easier to do. Than a million miles of pieces that are in the auto. Almost done with the conversion just waiting for light again and put the pilot bushing in the clutch kit, housing and boom i go again.
i go again.
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