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Unread 05-14-2009, 10:03 PM   #1
fast68
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A-904 trans fluid type and capacity

1998 A-904 3 speed auto with lockup

fresh rebuild.,

going to go pick it up from the shop in the morning.

what fluid type
and how many quarts is it going to take to get it going ?


thanks

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1998 TJ 2.5L A-904 NP231-C
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2001 wrangler 4.0L 5 speed 35"
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Unread 05-14-2009, 10:07 PM   #2
LJameson
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ATF+4 is the fluid you need to use. IIRC, it needs somewhere around 8 quarts. I'll need to double check though.
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Unread 05-15-2009, 05:08 AM   #3
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Quote:
Originally Posted by fast68 View Post
1998 A-904 3 speed auto with lockup
Are you sure that's not a 30RH?...
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Unread 05-15-2009, 04:01 PM   #4
fast68
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its a 904 apparently same thing as a 30RH

the shop calls it 904


very small 3 speed auto 1998 with 2.5L

shop said 9 or 10 quarts of dex merc is what to use

i did some research online last night and everything i saw said that ATF 3 or 4 had to be in the 4 speed autos for sure but i couldnt find a straight answer on the 3 speeds.


picked it up a couple hours ago

its totally brand new, even rebuilt the converter and all for 632.19 with tax out the door


and another interesting thing about these i learned is that you dont need to seal the trans case adapter to the 231 case- because there is a seal around the output shaft of the trans in the case adapter housing yay


nice.....



thanks
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1998 TJ 2.5L A-904 NP231-C
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2001 wrangler 4.0L 5 speed 35"

Last edited by fast68; 05-15-2009 at 06:26 PM..
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Unread 05-15-2009, 04:32 PM   #5
TravisHeim
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Quote:
Originally Posted by fast68 View Post
its a 904 apparently same thing as a 30RH

the shop calls it 904


very small 3 speed auto 1998 with 2.5L

shop said 9 or 10 quarts of dex merc is what to use

i did some research online lastnight and everything i saw said that ATF 3 or 4 had to be in the 4 speed autos for sure but i couldnt find a straight answer on the 3 speeds.


picked it up a couple hours ago

its totally brand new, even rebuilt the converter and all for 630 bucks with tax out the door


interesting thing about these i learned also is that you dont need to seal the trans case adapter to the 231 case

nice.,



thanks
My 97 owners manual lists Mopar ATF Plus (Type 7176) Preferred, but I have been running ATF +4 for several monthes after recommendation by Jerry Bransford. My 30RH (A-904) seems to shift better with the ATF +4 especially when it was averaging 5 degrees for several weeks. Personally I couldn't see the point in running anything less than ATF +4 now, especially since the total cost for a complete fillup isn't that much more than lesser fluids.
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Unread 05-15-2009, 04:54 PM   #6
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Quote:
Originally Posted by fast68 View Post
its a 904 apparently same thing as a 30RH
Does the 904 have torque converter lock-up?...
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Unread 05-15-2009, 05:31 PM   #7
LJameson
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Quote:
Originally Posted by Knuckelhead View Post
Does the 904 have torque converter lock-up?...
When a transmission shop orders parts for the transmissions, they don't order 30RH or 32RH parts. They order A904 parts. Just like how Jeep technically calls our beloved (heh) axles M35s, but we still refer to them as D35.

To the OP, Stick with ATF+4. There is in fact a TSB out saying that you must use ATF+4 (ATF+3 is fine also, but it's not made anymore so I wont refer to it). Pep boys in fact put Dexron in my friends TJ with a A904/32RH. Guess what Pep boys spent 1500 dollars on 2 weeks later.
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Last edited by LJameson; 05-15-2009 at 05:44 PM.. Reason: added more schtuff
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Unread 05-15-2009, 05:38 PM   #8
fast68
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Quote:
Originally Posted by Knuckelhead View Post
Does the 904 have torque converter lock-up?...


yes it does, or at least this one does.

so apparently chrysler renamed transmission models, like GM did for example

904 = 30RH it seems

and for example gm did the same thing:

700r4 to 4L60

th400 to 3L80

and so on

first number is number of forward ranges
and other two numbers are weight capacity rating



learning more is great yayyy

thanks!
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1998 TJ 2.5L A-904 NP231-C
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2001 wrangler 4.0L 5 speed 35"

Last edited by fast68; 05-15-2009 at 06:30 PM..
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Unread 05-15-2009, 07:15 PM   #9
Knuckelhead
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Quote:
Originally Posted by fast68 View Post
yes it does, or at least this one does.

so apparently chrysler renamed transmission models, like GM did for example

904 = 30RH it seems
I thought the 904 with lock-up was known as the Torqueflite 909?...
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Unread 05-15-2009, 07:27 PM   #10
RubiconRazorbac
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Quote:
Originally Posted by fast68 View Post
its a 904 apparently same thing as a 30RH

the shop calls it 904


very small 3 speed auto 1998 with 2.5L

shop said 9 or 10 quarts of dex merc is what to use

i did some research online last night and everything i saw said that ATF 3 or 4 had to be in the 4 speed autos for sure but i couldnt find a straight answer on the 3 speeds.


picked it up a couple hours ago

its totally brand new, even rebuilt the converter and all for 632.19 with tax out the door


and another interesting thing about these i learned is that you dont need to seal the trans case adapter to the 231 case- because there is a seal around the output shaft of the trans in the case adapter housing yay


nice.....



thanks

What shop did you use? I'm thinking about rebuilding this thing myself but for ~600 bones, I don't know if I can pass that up.
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Your shaft isn't long enough to handle that kind of droop...
My build thread: http://www.jeepforum.com/forum/f9/ru...thread-792423/
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Unread 05-15-2009, 08:55 PM   #11
fast68
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Quote:
Originally Posted by RubiconRazorbac View Post
What shop did you use? I'm thinking about rebuilding this thing myself but for ~600 bones, I don't know if I can pass that up.

irwin and dunbar in springfield off veterans parkway after 8th street intersection coming from sherman, its the turn for the airport road

im sure you know exactly where im talking about hehee

i got it done for 595 because we are a shop, otherwise its 995 for any joe off the street.

we arent a business with a tax number yet but are working on it,.

we have a shop fully equipped with vehicle lift and trans stand up pneumatic/hydraulic jacks etc, and we do trans replacements all the time


we have had other trannies rebuilt by these guys in the past and they are always quick and good, so we will always take our business to them.
my brother and i got a complete tour of the place the first time i ever went there and brought them a trans ot have rebuilt, wow the equipment they have is insane, their dyno machine(chevy engine powered), their torque converter rebuilding station, omg, wow,,, so many things i ahve no idea about, ahhaa,,.

the last one was a 4L60E in a 97 chevy 1500

but that one was 1100 bones to have done haha, but i think that was probably the any joe off the street price, so i failed there, hahaha. that truck we see every once in a while it is still doing great with many thousands of miles put on it since then(it has over 200k on it and spotless like brand new condition inside and out, literally)

peace
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1998 TJ 2.5L A-904 NP231-C
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2001 wrangler 4.0L 5 speed 35"

Last edited by fast68; 05-15-2009 at 09:08 PM..
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Unread 05-15-2009, 09:00 PM   #12
fast68
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Quote:
Originally Posted by Knuckelhead View Post
I thought the 904 with lock-up was known as the Torqueflite 909?...
not sure but 909 is really similar i read somewhere, maybe it is the non-TCC one


well i read this page

and it says that the 904 is a 909 without TCC

i assumed that the two wire plug on the front driver side of the pan rail area in the tranny case was the TCC plug wires, but maybe its not then ? two black wires inside the pan

but maybe it is not a TCC solenoid in there and is instead some other solenoid or something then.

im not a tranny guy, i build engines and play with chassies and axles/diffs,

i only replace trannies, not service them internally, haha



the shop says its a 904 and so i dunno,.
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1998 TJ 2.5L A-904 NP231-C
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Last edited by fast68; 05-15-2009 at 09:30 PM..
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Unread 05-15-2009, 09:27 PM   #13
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Quote:
Originally Posted by fast68 View Post
not sure but 909 is really similar i read somewhere, maybe it is the non-TCC one


well i read this page

and it says that the 904 is a 909 without TCC

i assumed that the two wire plug on the front driver side of the pan rail area in the tranny case was the TCC plug wires, but maybe its not then ? two black wires inside the pan

i dunno
I think the 909 has a single (12 vdc) activation wire with internal ground to the transmission and the 30RH has a 2 wire circuit with constant 12vdc applied to the transmission and the PCM supplying the ground when proper parameters are met (TVC, rpm and mph)...
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Unread 05-15-2009, 10:59 PM   #14
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It's a member of the Torqueflite 904 family but the exact variation of it that goes in our 4x4 Wranglers (for the 2.5L engine) is the 30RH which is its specific model ID. For example, telling the parts guy you need parts for a 904 may or may not get you the correct parts so it's just better to call it a 30RH to prevent confusion.
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Unread 05-16-2009, 07:13 PM   #15
fast68
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hmm interesting and good to learn

thanks!
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2001 wrangler 4.0L 5 speed 35"
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