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Transmission slipping....please help???

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Old Aug 18, 2011 | 09:05 PM
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Default Transmission slipping....please help???

While driving my automatic yesterday I noticed that first gear wasn't shifting until around 4500rpms. So I got the trans fluid changed out and the filter and pan cleaned thinking that would solve the problem, but it didn't. Today I noticed that none of the gears wanted to shift below 3000rpms. Than the more I drove it the worse it got and eventually it didn't want to get out of first or second gear.

The question I have is that I'm pretty sure I need a rebuild but I'm not very familiar with transmissions so I don't know what to ask for? I have headers and a pro charger and running about 450rwhp. I plan on eventually doing heads and cams to achieve a maximum of 550-600rwhp. I want to keep it as my daily driver so I'm guessing I don't want a high rpm stall converter. I'm willing to spend between $3,500 to $4,500 for the build. I want your opinions on what you would do if this was your car? Any advice you can give me is greatly appreciated. Thank you in advance for your help
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Old Aug 18, 2011 | 10:51 PM
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Here you go:

Finish Line Transmissions
801 N. Central Avenue
Wood Dale, IL 60191
Email: info@finishlinetrans.com
Phone: 630-350-7776
Fax: 630-350-7736

Ask for Andy, he'll take care of your needs. From what your final HP numbers will be I'd probably say a level 5 will work for you and I'd reccomend a Yank converter too maybe an SS2800, what gears do you have, 2.73 or 3.15?
http://www.finishlinetrans.com/trans...meDuty4L65.htm

My trans is there right now, getting a level 4, I got a cam, heads, headers, intake and 3.42 gears installed with a Yank SS3200 stall. My 3-4 went out on my stock trans also. Good luck.

Last edited by Domin8r; Aug 18, 2011 at 10:53 PM.
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Old Aug 18, 2011 | 11:10 PM
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Originally Posted by Domin8r
Here you go:

Finish Line Transmissions
801 N. Central Avenue
Wood Dale, IL 60191
Email: info@finishlinetrans.com
Phone: 630-350-7776
Fax: 630-350-7736

Ask for Andy, he'll take care of your needs. From what your final HP numbers will be I'd probably say a level 5 will work for you and I'd reccomend a Yank converter too maybe an SS2800, what gears do you have, 2.73 or 3.15?
http://www.finishlinetrans.com/trans...meDuty4L65.htm

My trans is there right now, getting a level 4, I got a cam, heads, headers, intake and 3.42 gears installed with a Yank SS3200 stall. My 3-4 went out on my stock trans also. Good luck.
Thank you for the info on Finish Line Transmissions. I will give them a call tomorrow morning. I believe I'm running stock 2.73 gears.
Anyone else please feel free to chime in on your opinions or suggestions.
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Old Aug 18, 2011 | 11:39 PM
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No problem, if you decide to go with a higher stall you should at least have 3.15 gears. If your interested I can sell you mine that I just took out.
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Old Aug 18, 2011 | 11:42 PM
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Originally Posted by Domin8r
No problem, if you decide to go with a higher stall you should at least have 3.15 gears. If your interested I can sell you mine that I just took out.
Thanks, but after reading some of the other posts on the Tech/Performance page I think I want to go with 3:42 gears. I'll let you know if I change my mind and want 3:15's. Thanks for you help
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