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Tranny porbs........HELP!!

  • Thread starter Thread starter 1SLO306
  • Start date Start date Dec 25, 2005
1

1SLO306

My 97 GTP owns you ALL!
Mar 31, 2005
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Muhlenberg, ky
Dec 25, 2005
#1
  • Dec 25, 2005
  • #1
I have a tremec 3550 in my 89 lx. when i shift into 3rd and 4th it doesnt do anything but grind. Its like the gears arent all the way together or something. Does anyone have any idea what could cause this? Will it need a rebuild??
Thanks for help guys!!!
 

2000xp8

SN Certified Technician
Aug 8, 2003
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NJ
Dec 25, 2005
#2
  • Dec 25, 2005
  • #2
Sounds like a rebuild to me, i would not keep trying and making it worse.
If it's just needs a small parts rebuild, figure on about $500 if you pull it.
 

jrichker

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Mar 10, 2000
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Dec 25, 2005
#3
  • Dec 25, 2005
  • #3
The Tremec rebuild kits are expensive. I did one about 2 1/2 years ago and spent $384 for the same type of rebuild kit that cost $160 for a T5.

I don't know how you feel about the DYI thing when it comes to gears, some people don't like the idea of working on transmissions. If the DYI transmission fix idea isn't something that you would rather leave to someone else, here are some resources:
See http://www.ttcautomotive.com/English/onlineorder/product.asp to download a FREE service manual for T5 or Tremec 3550
You will need the Adobe Acrobat viewer which is also a free download – http://www.adobe.com/products/acrobat/readstep2.html

See http://www.hanlonmotorsports.com/ or http://www.ddperformance.com for parts

http://cartapes.com also has a video on how to rebuild your T5 or Tremec. It costs less than $20, and is worth every penny of it.

I did a Tremec 3550 rebuild, and it wasn't that difficult. The video was an immense help, and I would recommend viewing it. At $20, it will give you an opportunity to look and decide for yourself if you think that it is something you want to try to do.

You will also need a magnetic base and dial indicator to measure the endplay ($20-$40). http://www1.mscdirect.com/CGI/NNPDFF?PMPAGE=1306&PMCTLG=00

The tricky part is that you will need some shims to adjust the endplay in the two shafts: the new bearings will change the clearance. There is no way of telling what it will be until you get to the point that it is time to measure and check the clearances. Halon has the individual shims if you can wait for them. If you can't afford the wait, the auto parts store can sell you some shim stock and you can make your own, or have a machine shop make them for you. The shim stock comes in brass (easy to cut) and steel, in varying thicknesses. That's where the dial indicator & base come in - there is no way to get the clearance right without it.

Getting the car jacked up high enough to get the trans jack in and out from under the car was somewhat challenging. Since I didn't have a helper, getting the trans out of the car and back it was one of the more difficult things about the job. I built a trans jack out of 2x6's, some angle iron and a $25 floor jack. If I hadn't done that, I would have needed a helper or to rent a commercial trans jack. At 100+ pounds the Tremec 3550 was far too heavy for me to lift by myself.
 
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