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Rebuild 904/LU Where to buy? #767404
08/07/10 01:51 AM 08/07/10 01:51 AM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
mopar

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Nampa, ID
I have a mid 80's 904lu that I want to rebuild. I will also need a TC of around 2400-2600. Dont want to spend alot, but want something thats going to last. The car is a 1963 Valiant Convertable thats getting a 360. The engine has 10.1, 2.02 valves and a .484 purple shaft cam. Not sure on the gearing as of yet, but around 3.25-3.50. Its going to be a weekend/ nice day car. I already have a tci shift kit for it, but would like some advice on where to get the rest of the parts. Thanks in advance for the help.
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767405
08/07/10 08:14 AM 08/07/10 08:14 AM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
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Florida
CRT

Re: Rebuild 904/LU Where to buy? [Re: scratchnfotraction] #767406
08/08/10 12:47 AM 08/08/10 12:47 AM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
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Nampa, ID
What part number should I be looking for? I looked on the site and didn't find anything listed for the 904.
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767407
08/08/10 08:08 AM 08/08/10 08:08 AM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
I Live Here
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Florida
my bad..CRT may not do lock up trannys

try your local tranz shop for rebuild kit and a reman TC
Re: Rebuild 904/LU Where to buy? [Re: scratchnfotraction] #767408
08/08/10 09:01 PM 08/08/10 09:01 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
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Nampa, ID
What brand should I be looking at for a kit. I don't want some no name made in china crap. The shift kit I have new in box is a transgo tf-1. Is this worth using, or would I be better off getting a complete kit that has this already in it?
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767409
08/08/10 09:07 PM 08/08/10 09:07 PM
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
transgo TF-2

live every 24 hour block of time like it's your last day on earth
Re: Rebuild 904/LU Where to buy? [Re: RapidRobert] #767410
08/08/10 10:59 PM 08/08/10 10:59 PM
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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dusturbd340W5 Offline
master
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Kissimmee Fl.

70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Rebuild 904/LU Where to buy? [Re: RapidRobert] #767411
08/08/10 11:06 PM 08/08/10 11:06 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
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Nampa, ID
I see the TF1 as a street kit and the TF2 as a full race. http://www.summitracing.com/compare.aspx

Why would I want a race shift for a street car that may see the track 1-2 times a year? Just looking for some input. Don't want a car that is uncomfortable to ride in. The wife and kids will be in it.
Re: Rebuild 904/LU Where to buy? [Re: scratchnfotraction] #767412
08/09/10 02:40 AM 08/09/10 02:40 AM
Joined: Jul 2008
Posts: 205
Martinsville, VA
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440child Offline
enthusiast
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Martinsville, VA
Quote:

my bad..CRT may not do lock up trannys

try your local tranz shop for rebuild kit and a reman TC



Try calling CRT for a price on a l/u trans. I called about one for my '85 Ram p/u & iirc he quoted me $600. Can't remember the price for the converter, tho. These guys have the 904 l/u converters in different stall speeds http://www.transmissioncenter.net/dodge.htm .
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767413
08/09/10 11:17 AM 08/09/10 11:17 AM
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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dusturbd340W5 Offline
master
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Kissimmee Fl.
Quote:

I see the TF1 as a street kit and the TF2 as a full race. http://www.summitracing.com/compare.aspx

Why would I want a race shift for a street car that may see the track 1-2 times a year? Just looking for some input. Don't want a car that is uncomfortable to ride in. The wife and kids will be in it.



the TF1 is more a HD/towing kit the TF2 is not a full race kit it is there street/strip kit the TF3 is the full race manual kit

70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Rebuild 904/LU Where to buy? [Re: dusturbd340W5] #767414
08/09/10 03:05 PM 08/09/10 03:05 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
mopar

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Posts: 612
Nampa, ID
Would this be the kit I should look at with the TF-2?

http://www.summitracing.com/parts/TCI-129000/
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767415
08/09/10 03:23 PM 08/09/10 03:23 PM
Joined: Jan 2003
Posts: 2,931
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Paul_Fancsali Offline
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I would strongly consider not using a lockup trans with that cam You may be asking for a surging and other udesireable problems Just a thought!
Re: Rebuild 904/LU Where to buy? [Re: Paul_Fancsali] #767416
08/09/10 03:35 PM 08/09/10 03:35 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
mopar

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Posts: 612
Nampa, ID
Unfortunatley, it's what I have. Its not really in the budget to change that. Can I change out the input shaft to eliminate this function? Also, where can I get a input shaft for the driveline. Around here they want $150 for a stock driveline and wont seperate the input. I am putting in a Ford 8" and will need a custom driveshaft made. When I got the car, it had an A833 and a tired 318. I am going with the 904 as it came with the car and was from a working patrol car, right up until it was t-boned. I just want to do it once and not have to pull it in a few years or sooner if I kill it.
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767417
08/09/10 04:13 PM 08/09/10 04:13 PM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
I Live Here
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Florida
you can block the loc-up valve on the VB and get a reman TC with the guts left out to make it non loc-up(or just block the loc-up valve)

with out changing the input shaft

you will need a smaller 904 slip yoke as the od 833 use a large slip yoke like a 727

IMO,just a rebuild and block the loc-up valve and run the TC thats in it

should be the HD a999 if it a police car tranz,IIRC
Re: Rebuild 904/LU Where to buy? [Re: scratchnfotraction] #767418
08/09/10 05:24 PM 08/09/10 05:24 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
mopar

Joined: Feb 2007
Posts: 612
Nampa, ID
The driveline that was in it has the 4 bolt flange. As for the TC, can I get 1 for a non l/u and use it? I need to buy a new 1 anyways. Is the steps to block the l/u function in the atsg manual? Thanks for the help and keep em comming

Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767419
08/09/10 06:41 PM 08/09/10 06:41 PM
Joined: May 2004
Posts: 1,522
Ste-Sophie, Quebec, Canada
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Wedgeman Offline
pro stock
Wedgeman  Offline
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Ste-Sophie, Quebec, Canada
SMR transmission do sell LU torques
Dan
Re: Rebuild 904/LU Where to buy? [Re: Wedgeman] #767420
08/09/10 08:07 PM 08/09/10 08:07 PM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
I Live Here
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Florida
bumped the old post on blocking the loc-up

"A-999 locking converter"

good read and info

Last edited by scratchnfotraction; 08/09/10 08:09 PM.
Re: Rebuild 904/LU Where to buy? [Re: None2Slow] #767421
08/10/10 09:04 AM 08/10/10 09:04 AM
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick Offline
I Live Here
patrick  Offline
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Grand Haven, MI
Quote:

The driveline that was in it has the 4 bolt flange. As for the TC, can I get 1 for a non l/u and use it? I need to buy a new 1 anyways. Is the steps to block the l/u function in the atsg manual? Thanks for the help and keep em comming



nope, spline is different.

1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
Re: Rebuild 904/LU Where to buy? [Re: scratchnfotraction] #767422
08/10/10 10:01 AM 08/10/10 10:01 AM
Joined: Jun 2008
Posts: 1,822
Colorado
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denfireguy Offline
top fuel
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Colorado
Quote:

you can block the loc-up valve on the VB and get a reman TC with the guts left out to make it non loc-up(or just block the loc-up valve)

with out changing the input shaft

you will need a smaller 904 slip yoke as the od 833 use a large slip yoke like a 727

IMO,just a rebuild and block the loc-up valve and run the TC thats in it

should be the HD a999 if it a police car tranz,IIRC

Another option is to modify the lockup valve to engage at 40mph instead of 30 so there is a little bit less torque at lockup. There was a TSB on these transmissions for shudder. The Transgo kits do modify the lock up valve body but does not have the substitute spring for the valve. There is a cheap 20 dollar shift kit out there that does have a new spring. I used the spring and tossed the other stuff but kept the nifty drill bits.
I do not have any road experience yet with this lashup as my engine is not yet complete. Just threw this out for something else to worry or think about!
The rebuild kit I used was an Alto Red kit with Kolene steels.
Craig

2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
Re: Rebuild 904/LU Where to buy? [Re: denfireguy] #767423
08/19/10 03:38 PM 08/19/10 03:38 PM
Joined: Feb 2007
Posts: 612
Nampa, ID
None2Slow Offline OP
mopar
None2Slow  Offline OP
mopar

Joined: Feb 2007
Posts: 612
Nampa, ID
I just went and looked at the TC that I got with the 904 I have. It has a sticker on it that says

HS
LOCK
UP

Is this a high stall l/u? I will try to post the trans numbers later today.
Thanks for the help


edit:
I looked at the numbers and this is what i got. The first 2 were not stamped really well, but this is the best I could do.

PK4295887X 7656 9964

If you could help me find what I have to work with, I would appreciate it.

Last edited by None2Slow; 08/19/10 07:01 PM.
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