Transmissions and Drivetrain Need help with your trans? Problems with your axle?

leaking tranny fluid bad

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Old 10-27-2014, 09:57 AM
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Car: 1983 Firebird S/E
leaking tranny fluid bad

last year i picked up a 83 firebird s/e as a project car the only major thng wrong was that it leaks tranny fluid while shiffting was told by owner that it was the rear main engine seal any ideas?
Old 10-27-2014, 11:25 AM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: leaking tranny fluid bad

Firat, determine if it is red ATF or engine oil. And if a particular place is wet under the car.
Old 10-27-2014, 11:02 PM
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Car: Got me a nice little '86 Z28.
Engine: A brand new 350 with a forged lower
Transmission: 5 speed, TKO600.
Axle/Gears: 10 bolt 373 modified zexel.
Re: leaking tranny fluid bad

As jmd stated, determine what fluid is leaking. Then, if it is ATF, and in the middle of the car where the trans bolts up to the engine, it is probably a converter seal leak. Now, those don't usually leak unless the bushing for the torque converter is worn excessivly. Look very carefully, as I have seen many that had a leak near the center of the car be from a rusted out cooling line on the passenger side of the trans.
BTW, trans removal is nessisary to replace the seal and bushing, so you could also do the rear main engine seal while the trans is out, just remove the flexplate and replace the seal.
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