Author Topic: 3rd gear shifting problems???  (Read 821 times)

Offline quagmire

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3rd gear shifting problems???
« on: April 30, 2008 - 06:17:50 PM »
I've been having a couple problems with my 904 trans ever since rebuilding it.  When I put it in reverse it engages really hard, it feels like it is slamming into gear.  The same thing seems to happen when it shifts into 3rd.  It is really harsh, I am worried about breaking something it shifts into 3rd so hard.  I've also had a problem getting it to shift into 3rd, it seems to be delayed.  I've played around with the kickdown but cant seem to get a balance where it shifts into 3rd decently without upshifting too soft and quickly in the other gears.  Every once in awhile it almost seems to bind a little during the 2-3 shift.  Its only done it twice, and it started recently.  I have an automatic shifting valvebody from CRT and I have blocked off the accumulator and installed an orifice plug in the case.  On top of that are kevlar bands, a 3.8 lever, a deep trans pan with a billet filter extension and a billet servo.  I was leaning towards a possible front clutch issue, but dont understand what would cause it to slam like that.  I measured endplay and clutch clearances when I built it, and airchecked everything.  I'm starting to think it is a valve body problem.  Any help would be greatly appreciated, I'd like to avoid yanking the trans again now that it is starting to warm up again after such a long winter!




Offline tactransman

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Re: 3rd gear shifting problems???
« Reply #1 on: May 01, 2008 - 09:04:37 AM »
Dan,have you talked to John Cope at CRT? He is a VERY knowledgeable man and it is his VB. Give him a call and post what he says. 219-374-0100   :2thumbs:
Terry-tactransman 
Torqueflite/Automatic Transmission Specialist
Union, Mo.
Give a man a fish and he eats for a day,teach him to fish and he eats for a lifetime.

Offline quagmire

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Re: 3rd gear shifting problems???
« Reply #2 on: May 01, 2008 - 08:11:09 PM »
Yeah, I'll have to do that on my next day off.  I was just curious as to whether or not it sounded like something I did wrong during the rebuild before contacting him about it.