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1988 Chevy S-10 Cause of rebuilt trans. Failure

Tiny
BIBLE
  • MEMBER
  • 1988 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 10,000 MILES
All forward gears fail, only reverse. Replaced trans. With new kit, pump, seals, solenoid, planetary gears torque converter. Re-installed it changes gears perfectly, then after a mile driving, loud noise, completely shears gear above planatary. Happened three times. Someone suggested problem in casing that caused the gears to work against each other. Appreciate your diagnosis. This is a 700 R4 automatic transmission.
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Sunday, October 3rd, 2010 AT 2:27 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This is something only a visual inspection by a qualified, trans person can do. It can be anything from a cracked case, leaking valve body, hardly anything. That's why you need to have a qualified person look at it. It could also have a missing thrust bearing that caused this.
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Monday, October 4th, 2010 AT 7:45 PM

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