Automatic Transmission Dilemma - Page 2 -

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Old 05-27-2012, 08:44 AM   #11
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Join Date: Feb 2006
Location: AB
Posts: 110

Mine started the slip or flare in February at 38282 miles. It was a rough grinding shift from 2nd to 3rd. I'm in the process of having it replaced with hopefully a beefed up PA transmission.
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Old 05-30-2012, 12:02 AM   #12
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Join Date: May 2007
Location: Central Texas
Posts: 2,384

As recommended, you should change fluid/filter. However, you've probably properly diagnosed the issue to a worn intermediate servo. They aren't that hard to replace, but I've only done it with the trans lowered/disconnected from the car.

The servo may be servicable while still in the car; it's a little tight, but it maybe can be done. You can get a billet servo from TCI.
I have the servos I pulled from my trans when I upgraded to TCI servos. Both of them have roughly 25k miles IIRC; would sell those for a reasonable low price, or just one.

Also, and maybe something you'd be looking more for, I'm pulling and selling my beefed-up 5r55s (going with a 4r70 for racing purposes). I bought the trans used, have put 8k miles on, with billet TCI servos and hardenned input shaft, and flexible dipstick tube in the pan. The trans internally has performance/build modifications, but I can't be sure how much power it can really hold. I'm putting 500 to the wheels and have had no issues with it whatsover. I'm adding a 'moderate' amount of power to mine and don't want to take the chance of trashing a perfectly good upgraded trans.
I'll be asking $900 for it when it goes for sale (it's coming out this coming weekend). Shipping these is a bitch though, and can run over $300 just for shipping.

Regardless, get it fixed before it gets worse!!!
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Old 07-08-2012, 12:18 PM   #13
Join Date: Jul 2012
Location: california
Posts: 3
Default 98 gt auto trans with overdrive

can anyone tell me why in overdrive in final gear does my tranny freewheel like its in neural after it slips from overdrive
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