AMC Eagle Den Forum

The Shop => Transmission Shop => Topic started by: priya on January 10, 2018, 11:59:19 PM

Title: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 10, 2018, 11:59:19 PM
So my automatic transmission has been leaking ever since I got the car on the road.  I recently tried tightening the bolts a little (the didn't seem at all snug to me) and it may now be leaking worse.

Do you know if anyone makes a cast aluminum pan for the Torque Flight 998?  I'm thinking that would do the trick.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: maddog on January 11, 2018, 01:44:06 AM
Hey Priya long time no see. I'm not entirely sure if they still do but the last I checked Summit Racing does make one it's bit deeper than the ones we use but I think the one they sell actually comes with the extension so you can lower your transmission filter as well.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: amcfool1 on January 11, 2018, 08:03:50 AM
Mopar sells a nice steel deep pan, I have two of them, good luck, gz    ask for 904/998 pan
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: eagleman on January 11, 2018, 09:33:42 AM
To answer your question about the aluminum trans pan yes there is a aluminum trans pan and I got mine from Summit and for sure its a dandy. Its deeper then stock and came with a filter extention. I installed it bout a year or so ago and it looks and fit perfect. I call it my sexy trans pan. After several attempts to get the stock pan to quit leaking I installed a deep steel pan and it still leaked so finally got tired of that and sprang for the aluminum one from Summit. After install and although it looked great it still leaked or so I thought. After much investigating it turn out to be the shift shaft seal that had been leaking all this time and not the trans pan at all. My advice to you is make sure its not your shift shaft seal leaking like mine was. Its a simple two dollar seal and its right above the trans pan on the drivers front side and when it leaks it drips off the drivers side and drivers side front of the trans pan making it appear to be the trans pan leaking. I got a remove and install tool and a pack or four seals off ebay for less the forty dollars delivered. Took less then a hour to change and didn't even have to drop my sexy new aluminum trans pan to change it. But again to answer your question if your looking for a deep aluminum trans pan then yeah Summit has your fix. Hope this helps.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: AMC of Houston on January 11, 2018, 02:37:55 PM
And if you go with the aluminum pan, use the MOPAR reusable hard plastic O-ringed gasket.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 11, 2018, 08:05:56 PM
To answer your question about the aluminum trans pan yes there is a aluminum trans pan and I got mine from Summit and for sure its a dandy. Its deeper then stock and came with a filter extention. I installed it bout a year or so ago and it looks and fit perfect. I call it my sexy trans pan. After several attempts to get the stock pan to quit leaking I installed a deep steel pan and it still leaked so finally got tired of that and sprang for the aluminum one from Summit. After install and although it looked great it still leaked or so I thought. After much investigating it turn out to be the shift shaft seal that had been leaking all this time and not the trans pan at all. My advice to you is make sure its not your shift shaft seal leaking like mine was. Its a simple two dollar seal and its right above the trans pan on the drivers front side and when it leaks it drips off the drivers side and drivers side front of the trans pan making it appear to be the trans pan leaking. I got a remove and install tool and a pack or four seals off ebay for less the forty dollars delivered. Took less then a hour to change and didn't even have to drop my sexy new aluminum trans pan to change it. But again to answer your question if your looking for a deep aluminum trans pan then yeah Summit has your fix. Hope this helps.

Thanks for that.  I'll have another look, it did seem that more was dripping from the driver's side of the pan, but perhaps more from the rear of the pan than the front.  The transmission fluid leaks out mostly when the car is sitting, would it do this if it was the shift shaft seal?
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 11, 2018, 08:07:36 PM
Hey Priya long time no see. I'm not entirely sure if they still do but the last I checked Summit Racing does make one it's bit deeper than the ones we use but I think the one they sell actually comes with the extension so you can lower your transmission filter as well.

Yes, its been a while maddog, good to be back.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 11, 2018, 08:09:47 PM
Thanks for the suggestions everyone!
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: eagleman on January 12, 2018, 09:10:23 AM
priya, Most definitely it will leak while sitting. In fact that's when it leaks its worst and the longer it sits the worse it leaks. Mine was so bad that I kept a old trans pan under it to catch all the fluid before I finally located the seal leaking. Not telling you what to do but for sure I'd double check that seal before doing the trans pans gasket change thing. But then again if you do go with the aluminum pan you will end up with the sexy-est trans pan on the planet.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 12, 2018, 01:39:02 PM
So I looked under the various transmission pans on the Summit web site and I didn't find any that specifically said Torqueflite 998 (unless I missed it).  I did find a couple that were for a Torqueflite A-904.  Will a transmission pan for a Torqueflite A-904 fit a Torqueflite 998?
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: eagleman on January 12, 2018, 03:37:28 PM
pirya, Mine is a TCI but don't remember where I purchased it from weather it was ebay or amazon or summit. Remember it was not cheap but at that point and time I really didn't care as I'd had my fill of that leak so price was not a big issue to me. Turned out not my issue at all but man what a cool trans pan I have. If I remember correctly its part # was 128001. Think that was it. Do remember I had to loosen the cross member and remove the skid plate from the transfer case and it was still a tight fit due to the added depth of the pan.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: rollguy on January 12, 2018, 03:39:04 PM
So I looked under the various transmission pans on the Summit web site and I didn't find any that specifically said Torqueflite 998 (unless I missed it).  I did find a couple that were for a Torqueflite A-904.  Will a transmission pan for a Torqueflite A-904 fit a Torqueflite 998?
From what I understand, the 998 is just a lockup converter version of the 904.  Both transmissions share the same non-4X4 and lockup specific parts.  I once made a 998 into a non-locker by using the input shaft, valve body, and torque converter from a 904.  The pan is the same.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: mudkicker715 on January 12, 2018, 07:15:37 PM
As rollguy said the pan is the same. Does that pan have a drain plug? Just maybe swap the magnet to the new pan than your good. I would ask your better half to also replace the shifter o ring. I cannot remember how to do so however. That knowledge is gone from me.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: amcfool1 on January 13, 2018, 12:00:54 AM
hi, yes the 904 and 998 are more or less the same trans. the 998 is the HD version of the 904. same pan. The aluminum ones are nice, but I personally prefer the deep steel pan from Mopar, your local Chrysler dealer. Reason being that if you hit a , say, big rock, with it, a steel pan will dent, and still get you home, while an aluminum one will crack, and its game over. good luck, gz
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 13, 2018, 11:31:22 AM
pirya, Mine is a TCI but don't remember where I purchased it from weather it was ebay or amazon or summit. Remember it was not cheap but at that point and time I really didn't care as I'd had my fill of that leak so price was not a big issue to me. Turned out not my issue at all but man what a cool trans pan I have. If I remember correctly its part # was 128001. Think that was it. Do remember I had to loosen the cross member and remove the skid plate from the transfer case and it was still a tight fit due to the added depth of the pan.

Thanks.  I still haven't re-installed my skid plate from when I had it off to remove the driver's seat or some such thing.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 13, 2018, 11:32:29 AM
So I looked under the various transmission pans on the Summit web site and I didn't find any that specifically said Torqueflite 998 (unless I missed it).  I did find a couple that were for a Torqueflite A-904.  Will a transmission pan for a Torqueflite A-904 fit a Torqueflite 998?
From what I understand, the 998 is just a lockup converter version of the 904.  Both transmissions share the same non-4X4 and lockup specific parts.  I once made a 998 into a non-locker by using the input shaft, valve body, and torque converter from a 904.  The pan is the same.

That's a relief.  I was thinking I wouldn't be able to get a cast aluminum pan for my transmission.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 13, 2018, 11:33:52 AM
As rollguy said the pan is the same. Does that pan have a drain plug? Just maybe swap the magnet to the new pan than your good. I would ask your better half to also replace the shifter o ring. I cannot remember how to do so however. That knowledge is gone from me.

I didn't notice if the pans I looked at had drain plugs.  I didn't notice one on my pan when I was under there tightening the pan bolts but I wasn't looking for it.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 13, 2018, 11:35:47 AM
hi, yes the 904 and 998 are more or less the same trans. the 998 is the HD version of the 904. same pan. The aluminum ones are nice, but I personally prefer the deep steel pan from Mopar, your local Chrysler dealer. Reason being that if you hit a , say, big rock, with it, a steel pan will dent, and still get you home, while an aluminum one will crack, and its game over. good luck, gz

Yes, when I mentioned to my husband I was looking at a cast aluminum pan he said the same thing and didn't like the idea.  I'm not too concerned about it as nowadays the SX./4 only drives in the city although I suppose its possible I could hit a really big pothole or something.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: AMC of Houston on January 13, 2018, 01:31:38 PM
The Summit pans do indeed have a drain plug.   I have them on 5 of my cars; but I don't off-road at all, so I'm not too concerned about holing one.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: eagleman on January 14, 2018, 01:11:18 PM
priya, I have a deep stamped steel trans pan I bought from our local Chrysler dealership and installed it on my 86 sedan thinking that would stop the leak. But it still leaked so off it came and I installed the aluminum pan which of course it still leaked because of the shift shaft seal being bad. Anyway I have this deep steel pan and if you want it its yours for the ride. I believe your in Canada and don't know what it would cost to ship but anyway if you want it just let me know and you can pm me your address I'll box it up and take it to the local post office and it will be on its way.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: AMC1 on January 15, 2018, 05:12:27 PM
Whichever you choose steel/aluminum will do the job. Keep in the back of your mind that aluminum does warp however, especially in high humidity. I've seen it in my basement where upon putting a straight edge across a part & see the gap. I know your not putting it there but still- - - - .
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 15, 2018, 08:19:01 PM
priya, I have a deep stamped steel trans pan I bought from our local Chrysler dealership and installed it on my 86 sedan thinking that would stop the leak. But it still leaked so off it came and I installed the aluminum pan which of course it still leaked because of the shift shaft seal being bad. Anyway I have this deep steel pan and if you want it its yours for the ride. I believe your in Canada and don't know what it would cost to ship but anyway if you want it just let me know and you can pm me your address I'll box it up and take it to the local post office and it will be on its way.

Thanks eagleman.  I think if I change pans I'm going to go with a cast aluminum one but I'll keep your offer in mind.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: eagleman on January 15, 2018, 08:33:57 PM
priya, I think that's a good choice but never the less my offer stands should you change your mind.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: AMC of Houston on January 15, 2018, 09:33:15 PM
And if you want to check out those reusable hard-plastic O-ringed gaskets, the MOPAR part number is 04295875AC.   Around $15 each delivered on Ebay.
Title: Re: Is there a cast aluminum transmission pan for the TF998?
Post by: priya on January 16, 2018, 06:05:32 PM
Thanks guys  :)