Tranny ID

I'm trying to ID an auto tranny I have. I know Jeep used the Chrysler 904
and the 999 in their 80's era CJ's. Does anyone know how to tell the two
apart? The 904's were used behind the 4cyl and the 999 behind the 6cyl
engines. It's my understanding that the cases are exactly the same, just
the internals are different. Any ideas? I'm sure the part numbers that are
stamped into the side will decode, but I've got no reference to decode them.

Thanks,

Tim in
Lowell, MA

I believe the 4 banger one uses a cable for the kick down and the 6 uses
a lever system for a kick down.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Tim Watkins wrote:
>
> I'm trying to ID an auto tranny I have. I know Jeep used the Chrysler 904
> and the 999 in their 80's era CJ's. Does anyone know how to tell the two
> apart? The 904's were used behind the 4cyl and the 999 behind the 6cyl
> engines. It's my understanding that the cases are exactly the same, just
> the internals are different. Any ideas? I'm sure the part numbers that are
> stamped into the side will decode, but I've got no reference to decode them.
>
> Thanks,
>
> Tim in
> Lowell, MA

All I've got is a bare transmission -- no cables or levers came with it...
The date code suggests it was built in Oct '82 which sounds about right. I
was told it came from a Scrambler with a 258, but I can see a casting that
says 904-2. Since the cases for the two transmissions are the same, I
wonder if they would bother with two different castings just to change the
number. I've got conflicting info, namely that it came off of a six
cylinder, but the casting in the case says 904-2. Any other ideas, other
than tearing it apart?

Thanks,

Tim in
Lowell, MA

Tim
"Mike Romain" > wrote in message
...
>I believe the 4 banger one uses a cable for the kick down and the 6 uses
> a lever system for a kick down.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Tim Watkins wrote:
>>
>> I'm trying to ID an auto tranny I have. I know Jeep used the Chrysler
>> 904
>> and the 999 in their 80's era CJ's. Does anyone know how to tell the two
>> apart? The 904's were used behind the 4cyl and the 999 behind the 6cyl
>> engines. It's my understanding that the cases are exactly the same, just
>> the internals are different. Any ideas? I'm sure the part numbers that
>> are
>> stamped into the side will decode, but I've got no reference to decode
>> them.
>>
>> Thanks,
>>
>> Tim in
>> Lowell, MA

Here's a site with some pics:

http://home.comcast.net/~timandca/tranny.html

Thanks,

Tim


"Mike Romain" > wrote in message
...
>I believe the 4 banger one uses a cable for the kick down and the 6 uses
> a lever system for a kick down.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Tim Watkins wrote:
>>
>> I'm trying to ID an auto tranny I have. I know Jeep used the Chrysler
>> 904
>> and the 999 in their 80's era CJ's. Does anyone know how to tell the two
>> apart? The 904's were used behind the 4cyl and the 999 behind the 6cyl
>> engines. It's my understanding that the cases are exactly the same, just
>> the internals are different. Any ideas? I'm sure the part numbers that
>> are
>> stamped into the side will decode, but I've got no reference to decode
>> them.
>>
>> Thanks,
>>
>> Tim in
>> Lowell, MA

Looks like your SOL.
http://www.off-road.com/jeep/tech/trans/tf904.html
http://www.off-road.com/jeep/tech/trans/tf999.html
God Bless America, ßill O|||||||O
http://www.billhughes.com/

Tim Watkins wrote:
>
> I'm trying to ID an auto tranny I have. I know Jeep used the Chrysler 904
> and the 999 in their 80's era CJ's. Does anyone know how to tell the two
> apart? The 904's were used behind the 4cyl and the 999 behind the 6cyl
> engines. It's my understanding that the cases are exactly the same, just
> the internals are different. Any ideas? I'm sure the part numbers that are
> stamped into the side will decode, but I've got no reference to decode them.
>
> Thanks,
>
> Tim in
> Lowell, MA

The 904 cast number's not self explanatory?
God Bless America, ßill O|||||||O
http://www.billhughes.com/

Tim Watkins wrote:
>
> Here's a site with some pics:
>
> http://home.comcast.net/~timandca/tranny.html
>
> Thanks,
>
> Tim

Do you know for sure that they used different castings for the same case?

Tim

"L.W. ("ßill") Hughes III" > wrote in message
...
> The 904 cast number's not self explanatory?
> God Bless America, ßill O|||||||O
> http://www.billhughes.com/
>
> Tim Watkins wrote:
>>
>> Here's a site with some pics:
>>
>> http://home.comcast.net/~timandca/tranny.html
>>
>> Thanks,
>>
>> Tim

I'd put money one it. What makes you think they would put the
number 904 on a 999 case?
God Bless America, ßill O|||||||O
http://www.billhughes.com/

Tim Watkins wrote:
>
> Do you know for sure that they used different castings for the same case?
>
> Tim

It's the same exact case. Car makers and suppliers are not known for doing
things twice for the same result. I think its a 904 as well, but I've never
seen a 999, so I'm looking for someone who has that can say for sure they're
marked 999....

Tim


"L.W. ("ßill") Hughes III" > wrote in message
...
> I'd put money one it. What makes you think they would put the
> number 904 on a 999 case?
> God Bless America, ßill O|||||||O
> http://www.billhughes.com/
>
> Tim Watkins wrote:
>>
>> Do you know for sure that they used different castings for the same case?
>>
>> Tim

The other thing that makes me think it's a 999 is that it's input shaft
appears to be made for a lock-up converter, which the 904 is not supposed to
have....


"L.W. ("ßill") Hughes III" > wrote in message
...
> I'd put money one it. What makes you think they would put the
> number 904 on a 999 case?
> God Bless America, ßill O|||||||O
> http://www.billhughes.com/
>
> Tim Watkins wrote:
>>
>> Do you know for sure that they used different castings for the same case?
>>
>> Tim