J-mod & tranny failures? - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 27 (permalink) Old 10-30-2002, 09:53 PM Thread Starter
 
Join Date: Sep 2002
Posts: 71
J-mod & tranny failures?

I am curious to know if anyone who has done the J-mod has had any transmission failures or problems with their tranny? Or has this been the cause of any other problems besides whip-lash? I have heard positive things but want to verify all. Can any dumb a** do it or should I have a shop try to do this for me on my 94' 3.8 LX?
DIABLO is offline  
Sponsored Links
Advertisement
 
post #2 of 27 (permalink) Old 10-30-2002, 10:18 PM
Refrigerator Raider Hater
Moderator
 
GreenBird's Avatar
 
Join Date: Jul 2002
Location: Vermont
Age: 36
Posts: 11,719
the J-mod helps tranny life, not hurts it.




Matt "Looks Like Egon" Davis
96 Alpine Green V8
98 Audi A8 4.2Q in Racing Green Totalled
02 Audi A8L 4.2Q in Black

I buy my OEM Ford parts at 10% over dealer cost from Steve in White Bear Lake, MN.
You drive "like a man possessed"... by a woman!
GreenBird is offline  
post #3 of 27 (permalink) Old 10-30-2002, 10:24 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Diablo

I have a 94 3.8L LX...and I had the J-mod done......Let me tell you, this is an excellent mod...I have had it on since last November. It will give your tranny a longer life and will keep it from excessive slippage and friction, which reduces heat.....I also had a Tranny cooler put on... I left one of the springs out, and I love the way my car shifts(I highly suggest a Tranny cooler...I recommend B&M, they have a low pressure drop system).
I can explain that if you want!!
I had A-Train, (one of the Tranny experts on this Board) do the mod and tranny cooler for me.......You can do it yourself if your confident enough...I mean how much do you trust yourself?....Everybody on here says that it's easy enough to do yourself...and alot of people do it themselves.....However, I never worked on a Tranny ever, so I wanted to let an Expert do it.....I trusted A-Train ( he's a very cool guy and very Knowledgeable) to do it more than a Tranny Shop...But if you find a reputable tranny shop, they should be able to follow the instructions in the articles.

BeirutsFinest
BeirutsFinest is offline  
Sponsored Links
Advertisement
 
post #4 of 27 (permalink) Old 10-30-2002, 10:55 PM
AED Specialist
 
A-Train's Avatar
 
Join Date: Jul 2002
Location: Somewhere in NJ
Age: 42
Posts: 1,277
Smile Some can and some can't...

Diablo,

I agree with Beiruts Finest. If you have some mechanical skills, then you can tackle it. If you have no idea what the difference is between an 8mm and a 9mm wrench...you're in for some noodle scratching.

It's pretty straight forward, but 90% of the people who do it run into a kink every now and then (including myself which I left out OD). It's best to let an experienced mechanic handle it if you aren't sure. I even got a Ford tech at a Ford dealer to install a pre-drilled plate from the man, for a customer of his.

The mod can be done to your 3.8L 4R70W. It won't hurt the tranny if done correctly, but it won't promote durability alone. You have to do the accumulators and get yourself a plate style tranny cooler as well.

A-Train

2008 Acura TSX (5AT)
2012 Honda Ridgeline RTL (w/Navi)

Ex toy: 1995 T-Bird LX - ALLEN supercharged, 2000 Mustang GT 4.6L PI engine, lot's of goodies...
12.74 @ 109.45 mph (BEST E.T. BEST MPH)
325 RWHP/380 RWTQ (SAE) on a dynojet
Tuned by Jerry W. from SCT
A-Train is offline  
post #5 of 27 (permalink) Old 10-30-2002, 11:15 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Yup

Diablo...A-Train is right....I forgot to mention that I also had my accumulators updated along with a 96-97 deep sump tranny pan....and Never forget Mercon V.....

Just to give you an Idea...I was skeptical about this Mod in the very beginning....I mean...It was created by a guy I have never seen or heard of in my life until I visited the TCCoA.....Finally, after I saw how many people loved it, and started thinking about it......I had a long conversation with Jerry himself about this Mod and tranny coolers...I was asking plenty of questions and he had no problem answering any of them....He knew my tranny like the back of his hand.....There was not one answer he gave me that i was uncomforatable with.......
After all that, I had a conversation with A-Train about this Mod as well....and he aslo gave me alot of input and explained it just like Jerry, again there was not one thing he told me that I had any doubt about....Think about it!!..The guy who designed your tranny created this Mod...you can't go wrong.

I say about 80% of the people on this board did the J-Mod..if not more.

So I went ahead and did the Mod...I love it
Trust me...If I did it, than you know it's safe, cause I do alot of research before attemting anything that i am skeptical about.

Hope this helps
BeirutsFinest
BeirutsFinest is offline  
post #6 of 27 (permalink) Old 10-31-2002, 12:20 AM Thread Starter
 
Join Date: Sep 2002
Posts: 71
Well yes I am a lil' skepticla but after hearing everyone praise it so much, this is a mod I would like to try. Let me ask this. Do the tech article contain everything I need to do this? I think I am going to print it up and take it to the tranny shop and see if I can get them to do this for me. Which B&M cooler did you use? Can I get Mercon V anywhere? Once again thx. for all your feedback.
DIABLO is offline  
post #7 of 27 (permalink) Old 10-31-2002, 01:45 AM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Diablo

I used the B&M 28,000 GVW tranny cooler...The largest one they make...Mercon V can be bought at any Ford dealership.....And Yes the tech articles contain everything you need....Just print them out and take it to the tranny shop.

Make sure you get all the updated parts and for the mod.

BeirutsFinest
BeirutsFinest is offline  
post #8 of 27 (permalink) Old 10-31-2002, 01:53 AM
Cougar Pilot
 
BlackCat94's Avatar
 
Join Date: Jul 2002
Location: Gopher State
Posts: 3,443
Can someone give me a list of just which parts I need? I know about the 1-2 spring, the 1-2 piston, 2-3 piston, and the drilling of the holes. Isn't there an overdrive piece too? I've read most of the tranny articles a couple of times, seems like I'm missing something still. Aren't there alot of parts in there that would be optional that I don't need? I know it will be a few yrs. before I see 350+ hp. Also I think that some parts of my tranny have been replaced, but it shifts so slow. Where's the best place to get parts from? 5 Star or my local Ford dealer? Thanks

TCCoA, there's no better way.
BlackCat94 - The Revolution.
1994 XR7 - Intake Tube, LMAF, March Underdrive Pulleys, J-Modded '00 Mustang Trans, Marauder T/C,
TruBendz 2.5" SS True Duals, Apten Flip Chip, FRPP 4.10s & Trac Lock, etc.

[email protected] with 3.27 gears
BlackCat94 is offline  
post #9 of 27 (permalink) Old 10-31-2002, 02:23 AM Thread Starter
 
Join Date: Sep 2002
Posts: 71
BeirutsFinest In the tech articles there are 3 articles. DO I need to follow all 3?
DIABLO is offline  
post #10 of 27 (permalink) Old 10-31-2002, 07:39 AM
Seasoned PostWhore
 
Rolling-Thunder's Avatar
 
Join Date: Jul 2002
Location: Albany, NY
Age: 57
Posts: 3,247
Use 5-Star Ford for your parts. If you are a TCCoA member, you will get a good discount.

Print out all three articles and have them handy when you talk to the tranny shop.

You need to decide how much of the J-mod you want to do.

Here's what I used, with the exception of the pan. I used a 97 by mistake.

Pre-drilled separator plate purchased from "The Man"
F8UZ-7A194-AA - Tranny pan with drain plug.
F6AZ-7A098-A - Filter assembly that goes with deep sump tranny pan
F7AZ-7F251-AA - 1-2 revised accumulator piston.
F75Z-7F284-AA - Light blue spring for top of 1-2 accumulator.
F7AZ-7F284-BA - Bottom spring for 1-2 accumulator (optional - leave spring out for firmer 1-2 shift).
F7AZ-7H292-AB - 2-3 revised accumulator piston
MERCON-V ATF Fluid

I did the J-Mod at 148,00 miles and the tranny continues to operate well at 170,000

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
Rolling-Thunder is offline  
post #11 of 27 (permalink) Old 10-31-2002, 09:48 AM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
I agree

Diablo...Rolling Thunder is right print out all 3 articles.

The parts you want are exactlt what Rolling Thuder listed....However..The Pan is optional..you can get one with or without the plug......But they are both deep sump pans...and I personally left the bottom spring out.....I was worried about not getting a smooth shift, and was hesitant to leave it out...But it's bad at all, I still get a smooth shift....but I have a 3.8L

BeirutsFinest
BeirutsFinest is offline  
post #12 of 27 (permalink) Old 10-31-2002, 10:36 AM
Moderator
Red Sox Nation Rabid Fan
TCCoAAC Founding Member
Moderator
 
JordanSypek's Avatar
 
Join Date: Jul 2002
Location: Central Connecticut
Age: 38
Posts: 3,165
Send a message via AIM to JordanSypek
five star doesnt ship mercon v... grab 15 quarts if you getting a cooler installed, it will run you about $53 ........


when the cooler is mounted... a lot of people will tell you not to strap it into the ac condensor... Mine is in there, and so is A-trains, and we have yet to see any problems, but if you want to be super cautious, i would recommend mounting it elsewere... and when you order the cooler, the 28000GVM one does not come with a mounting kit, barbed fitting or hose....so you will have to pick all that up.. unless you purchase a cooler that comes with the entire kit which they also sell....depending on your mounting configuation of choice, you are going to need the tranny mounting kit if you are going to strap it to the ac condensor...... the kit is about $15 from summitt... believe me, these mods are the best thing you could do for your transmission, i havent had any problems since my mods... good luck.....

TCCOAAC (R.I.P. JOEL)
96 4.6 XR7 (T45 Swap, etc.)
97 4.6 Mustang Cobra (28k Miles)
95 4.9 F150 4X4 M5R2)
JordanSypek is offline  
post #13 of 27 (permalink) Old 10-31-2002, 12:47 PM
Cougar Pilot
 
BlackCat94's Avatar
 
Join Date: Jul 2002
Location: Gopher State
Posts: 3,443
I'm planning on doing it myself, but I only have 2 thick piles of stuff printed off, I guess I'd better print some more, thanks for the part numbers, now if I can find them dam drill bits.

TCCoA, there's no better way.
BlackCat94 - The Revolution.
1994 XR7 - Intake Tube, LMAF, March Underdrive Pulleys, J-Modded '00 Mustang Trans, Marauder T/C,
TruBendz 2.5" SS True Duals, Apten Flip Chip, FRPP 4.10s & Trac Lock, etc.

[email protected] with 3.27 gears
BlackCat94 is offline  
post #14 of 27 (permalink) Old 10-31-2002, 01:17 PM
Seasoned PostWhore
 
Rolling-Thunder's Avatar
 
Join Date: Jul 2002
Location: Albany, NY
Age: 57
Posts: 3,247
Try Sears Hardware for the drill bits.

Also, McMaster Carr Inc., sells them, and you can usually get stuff in 1-2 days, UPS ground. 1-732-329-3200

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
Rolling-Thunder is offline  
post #15 of 27 (permalink) Old 10-31-2002, 02:15 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
I

I have my 28,000 GVM Tranny cooler mounted to my AC condenser too....After I saw that A-Train had it on there...I figured it was fine..despite what everyone else on this board said.....It's been on there since November of 2001.

BeirutsFinest
BeirutsFinest is offline  
post #16 of 27 (permalink) Old 10-31-2002, 02:19 PM
Cougar Pilot
 
BlackCat94's Avatar
 
Join Date: Jul 2002
Location: Gopher State
Posts: 3,443
Re: I

Quote:
Originally posted by BeirutsFinest
I have my 28,000 GVM Tranny cooler mounted to my AC condenser too....After I saw that A-Train had it on there...I figured it was fine..despite what everyone else on this board said.....It's been on there since November of 2001.

BeirutsFinest
Did you just zip-tie it to the condensor lines or what?
BlackCat94 is offline  
post #17 of 27 (permalink) Old 10-31-2002, 02:37 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Yup

We zip tied it all the way throughg the A/C condenser to the Rad.

BeirutsFinest
BeirutsFinest is offline  
post #18 of 27 (permalink) Old 10-31-2002, 10:39 PM Thread Starter
 
Join Date: Sep 2002
Posts: 71
YOu all say optional like leaving springs out. What is the best per Jerry?
DIABLO is offline  
post #19 of 27 (permalink) Old 10-31-2002, 10:47 PM
 
Join Date: Jul 2002
Posts: 710
Am I reading this correctly where people are saying they got pre-drilled seperator plates from Jerry? Is this pre-drilled with all the new holes u were gonna have to make? Sorta like all you have to do is drain, unhook, throw out old plate, install new one and filter and all the new springs and goodies, then put back in? Or is this a pre-drilled plate where the holes still need to be enlarged.... If it's a pre-drilled plate with the proper enlarged holes, does Jerry just readily sell these or what? Also how much can one be gotten for....
Spike is offline  
post #20 of 27 (permalink) Old 10-31-2002, 10:48 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Diablo

Diablo....Jerry Leaves that option up to you....It depends on how firm you want the 1-2 shift...If you want it really firm...leave the spring out (I'm not sure how big of a difference it makes).....If you want a less firm shift...Then put the spring in.....
You have a 3.8L like me....and I'm sure A-Train will tell you leave the spring out, just like he told me....It's not like you have a 5.0 that's gonna give you a whiplash when going into 2nd.

BeirutsFinest

Last edited by BeirutsFinest; 10-31-2002 at 11:06 PM.
BeirutsFinest is offline  
post #21 of 27 (permalink) Old 10-31-2002, 11:05 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Spike

Jerry doesn't have anymore of these to sell......You'll have to drill your original plate yourself....

Beirutsfinest
BeirutsFinest is offline  
post #22 of 27 (permalink) Old 11-01-2002, 09:25 AM
 
Join Date: Jul 2002
Posts: 710
hehe that really sucks lol oh well. Eventually i'll do the J-mod... good times. So i have a 3.8 and you guys think i should leave out the 1-2 spring?

Oh, and when i get Mercon-V does it HAVE to be motorcraft? Or just as long as it's mercon-V cause different companies make it....
Spike is offline  
post #23 of 27 (permalink) Old 11-01-2002, 10:23 AM
3rd Gear Poster
 
Join Date: Jul 2002
Location: Ohio
Age: 47
Posts: 125
Quote:
Originally posted by Spike
hehe that really sucks lol oh well. Eventually i'll do the J-mod... good times. So i have a 3.8 and you guys think i should leave out the 1-2 spring?

Oh, and when i get Mercon-V does it HAVE to be motorcraft? Or just as long as it's mercon-V cause different companies make it....

I run a Quaker State Mercon V that I can get at Wal-mart. When I first did the J-mod I left out the spring and it would give you whiplash when getting on it. So put the recomended spring in and now it still shifts firm and not neck breaking.
Blackkatt is offline  
post #24 of 27 (permalink) Old 11-01-2002, 10:35 AM
Seasoned PostWhore
 
Rolling-Thunder's Avatar
 
Join Date: Jul 2002
Location: Albany, NY
Age: 57
Posts: 3,247
My 1-2 shift was extremely harsh without the bottom spring in. I put the upgraded 1-2 bottom spring in, and the 1-2 shift is easier to take, but I can still chirp the tires.

Steve - TCCoA member
2003 Crown Vic LX Sport
1995 T-Bird LX 4.6 retired at 247,888 miles
Thanks for the ride !
Rolling-Thunder is offline  
post #25 of 27 (permalink) Old 11-01-2002, 02:47 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
Spike

You have to remember that leaving the 1-2 spring out for RollingThunder and Blackatt was whiplashing because they have a V8....If you leave it out of your 3.8L...It won't be neck breaking......Like I said, I left itout...as was suggested by A-Train....Cause I have a 3.8L with less torque than the V8.
If you don't like it....then just put it back in.

BeirutsFinest
BeirutsFinest is offline  
post #26 of 27 (permalink) Old 11-01-2002, 04:48 PM
 
Join Date: Jul 2002
Posts: 710
sounds like a plan... if i decide i don't like it out and put it back in don't i have to drain the tranny and refill it? Also it sounded to me like I can use whichever brand of Mercon-V i want to.... Sooo.... would you guys think it might be a good idea to change to mercon-V even if i don't plan on doing the j-mod right away? like change to it now, then just re-fill it when i do the mod... Cause i don't think the tranny fluid has ever been changed... although I could be wrong. For a stock tranny i should need 13 qt. right?
Spike is offline  
post #27 of 27 (permalink) Old 11-01-2002, 05:23 PM
6th Gear Poster
 
Join Date: Jul 2002
Location: West Orange, NJ
Posts: 538
you can

You can change to MerconV whenever you want.....I personally would only use Motorcraft MerconV

BeirutsFinest
BeirutsFinest is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome