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Old 04-06-2008, 08:23 PM
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need help trouble shooting

Guys this is wierd just courious if you have any ideas what would cause this and what it might be. Ok this is in my 13 second bracket racing car, this weekend i made my first pass coming out of burnout box felt like rear end make a lunging feeling, got back to pits jackep up car checked u joints and rear end play all seemed fine, later on in the fourth round when i lifted after crossing finish line it felt like rear end was trying to lock up it almost slid the tires i got it slowed down and was driving 15mph babying it and every so often it felt like i was putting on the brakes like a tooth or something was broken. I got it home and pulled rear end out its a ford 9 and everything looks great no broken pieces or anything, wear pattern is right on the money, its also got a mini spool in it everything looks great rear ends two years old, so could this posibly be my turbo 350 trans trying to locked up? I pulled the pan and no metal shavings but there were some pretty good size pieces of metal in there like 5 pieces a 16th thick and an inch long looked like drill bit shavings but no little shavings. Im confused any help will be appreciated! Thanks John

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Old 04-07-2008, 02:56 AM
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well u answered your own question Any metal in the pan is a NO NO.probably time for a new trans
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Old 04-07-2008, 04:27 AM
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Im just courious about what might be trying to lock up in there im not familiar with auto trans at all, is there any gears in there or just clutches and bands, also the out put shaft has alot of play up and down, this trans has been in the car 10 years of racing it sure has served its purpose. thanks for replys John
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Old 04-07-2008, 05:10 AM
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Typical automatic transmission has 1 or more planetary gear sets with anywhere from 3 to 9 real gears in them. Those gears typically run on 1 or more ring gears and 1 or more sun gears.


The 350 has two planetary sets with 2 or 4 gears each, 1 sun gear, and 2 ring gears. They are controlled by 1 band, 2 clutch drums, and 1 sprag assembly.


Anything more than MINIMAL iron filings in the pan means INSTANT rebuild.


Take your transmission apart. Your gears are garbage and I am surprised it moves at all.
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Old 04-07-2008, 03:58 PM
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Thanks for the replys guys! Dropped trans off at rebuilder today!! John
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