4R70W shift kit advice needed - TCCoA Forums
 
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post #1 of 13 (permalink) Old 11-01-2004, 01:46 PM Thread Starter
 
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4R70W shift kit advice needed

I just bought a used 97 Tbird with the 4.6L and a 4R70W trans. The
trans shifts "normal" but I like firm shifts for longer trans life.
I'm not talking tire screeching neck snapping shifts (like what I did
to my old AOD :-) just nice firm shifts instead of the slide into
gear shifts, it has now.
I saw many shift kits for this trans by different companies. I'd
like to know what you guys used and what you recommend.
I'd also like to know if you tried any of the electonic devices like
from Hypertech or Superchip that not only reprogram the trans but
reprogram the engine for more power or mileage.
Please, let me know your thoughts and recommendations.
I've read about the J-Mod, but it seems like there are a few grey areas as to what exactly to do to each piston, spring colors etc.
Thanks.
Dan S.
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post #2 of 13 (permalink) Old 11-01-2004, 02:01 PM
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Don't use a commercial "shift kit" on these transmissions unless you want to shorten it's life rather than lengthen it. Electronically firming up the shifts is a bad idea by itself too.
A mild j-mod with the spring setup listed for it will do exactly what you are asking. If there are any questions you have about a j-mod and what you should do, just ask. There are a lot of people here who will not hesitate to assist you.

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post #3 of 13 (permalink) Old 11-01-2004, 02:04 PM
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Oh, for the programmer, SCT all the way. The guy who designed these transmissions is a founder of SCT.
Lonnie in the EEC tuning forum can help you with that part of it.

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post #4 of 13 (permalink) Old 11-01-2004, 04:27 PM
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There are no gray areas if you simply order your parts from Dan Newman. He will know what you need to do the J-Mod.

He is the preferred Ford parts rep. for this web-site, and is one of the nicest guys out there to do business with. Plus, few can beat his prices, even with shipping.

Welcome to TCCoA, and feel free to ask more questions about the J-Mod.

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
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post #5 of 13 (permalink) Old 11-01-2004, 04:55 PM Thread Starter
 
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Ok, thanks.
First off. Is the J-mod the same as the directions in the How to build a bullit proof 4R70W ?
I beleive it is on page 13 or 14 of that article/web site.
If not. Can you provide me with a link to the J-Mod instructions and also a link to the guy to buy the parts from?

Thanks.
Dan
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post #6 of 13 (permalink) Old 11-01-2004, 05:01 PM
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Read A-Train's Shift Kit install "Shifty Business" tech article.

Dan Newman can be reached at 1-800-847-2047 (Town & Country Ford)

Basically, what you will want to do is: (for the "shift kit")

Swap out the 1-2 springs and possibly the accumulator.

Swap out the 2-3 spring and possibly the accumulator.

Enlarge holes in separator plate (per Shifty Business)

Also;

1.You may want to consider installing an auxillary tranny cooler. Heat is the 4r70w's enemy.

2. Flush the entire tranny and tranny coolant lines, and switch over to MerconV, if you haven't already


As far as the Chip, SCT is the way to go, and with the chip will be an improved shift schedule for the tranny. (among other things)

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !

Last edited by Rolling-Thunder; 11-01-2004 at 05:09 PM.
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post #7 of 13 (permalink) Old 11-01-2004, 05:17 PM Thread Starter
 
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Thanks again.
One more question. How do I get to the tech article section? I looked around, but was unsure. I figured asking would be the fastest way.
I'd love to read the shifty business aticle.
I guess I have two questions...
Do you have a link to SCT?

Dan
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post #8 of 13 (permalink) Old 11-01-2004, 05:46 PM
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When you come in from the main page. http://www.tccoa.com
Hit the button that says tech articles. There are alot of good articles in there.

Alan

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post #9 of 13 (permalink) Old 11-01-2004, 07:04 PM
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All of the SCT guys are associated with www.modulardepot.com

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
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post #10 of 13 (permalink) Old 11-01-2004, 07:23 PM
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Quote:
Originally posted by Rolling-Thunder
All of the SCT guys are associated with www.modulardepot.com
Negative. There are many SCT dealers nationwide that dont have anything to do with modular depot.

I spent 6 weeks helping Torrie at ford parts network design a SCT based chip for the Mark VIII's. I dont know diddly-sqwat about chips, and programming, and he is in Florida, while I roost out here in calif. he would burn a program on a chip, and send it to me. I would then test it for him, and send it back listing the changes it needed.

This was a long process, and many never knew what I was doing, but the bottom line is, 8 customers that I know of have tossed their other chips, and have gone with his. Aparently, we nailed the mark VIII TC lock-up schedule, shift points at various throttle positions, timing curves, etc.

he has a dyno, and can tune any car, but like I said, 3000 miles was a long way to drive to guinnea pig my car on his dyno.

Good luck with your JMOD. best thing I ever did to any car I have ever owned(except put Hilborn injection on alcohol on a 10 second big block Mopar!)

Last edited by Blackicelsc; 11-01-2004 at 07:31 PM.
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post #11 of 13 (permalink) Old 11-01-2004, 07:26 PM
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That's not what I meant, but I see your point.

I meant

SCT Guy

SCT Guy 1

SCT Guy 2

SCT Guy 3

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
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post #12 of 13 (permalink) Old 11-01-2004, 07:33 PM
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gotcha!!!

I misunderstood. Sorry.


p.s. 97 cupholder???!!!
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post #13 of 13 (permalink) Old 11-01-2004, 07:41 PM
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Quote:
Originally posted by Blackicelsc

p.s. 97 cupholder???!!!

Isn't that Thee most sought after T-Bird part?...lol

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
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