What auto tranny behind a 4cyl YJ? - Pirate4x4.Com : 4x4 and Off-Road Forum

ehko · 06-17-2004, 01:13 PM

I'm getting conflicting info... what auto tranny was offered behind a 4cyl YJ? Am I wrong thinking it's a TF999? If indeed it is, would a Dana 300 bolt up to it?

The Rockslut · 06-17-2004, 03:17 PM

904 behind the 4cyl. 999 will work also. Both have 23 spline outputs and will take a D300 no problem.

ehko · 06-17-2004, 03:48 PM

This is a completely retarded question... but are the bellhousings on the 999 and 904 the same? So I could technically grab a 999 off an older CJ and bolt everything to my 2.5L without any adapters?

Thanks for the reply slut.

bluebellyday · 06-19-2004, 10:54 AM

The bell housing is diffrent on the 4 cylinder trannys.
you can not use one off a 4.0 or other 6 cylinder model.

I just pulled mine while swaping in a 4.0 and new transmission.
but the posted spline is correct. 23 spline on all autos.

Your tranny should be a 30RH

look here
http://www.off-road.com/jeep/tech/trans/

Stinger124 · 06-19-2004, 05:51 PM

I am running a 904 on my 4 cylinder.. It all works great, very nice to have the automatic.

deadandcompany · 06-19-2004, 08:53 PM

I hope its flat where you live!

Stinger124 · 06-20-2004, 03:32 PM

Why is that ??

ehko · 06-20-2004, 10:29 PM

Sorry guys... just to confirm again...

The Dana300 will be a direct bolt up to a TF904 right? How could I get the 999 to work?

06-17-2004, 01:13 PM	#1 (permalink)
ehko Registered User Join Date: Apr 2002 Member # 11302 Posts: 38	What auto tranny behind a 4cyl YJ? I'm getting conflicting info... what auto tranny was offered behind a 4cyl YJ? Am I wrong thinking it's a TF999? If indeed it is, would a Dana 300 bolt up to it?

06-17-2004, 03:17 PM	#2 (permalink)
The Rockslut Registered User Join Date: Jun 2001 Member # 5021 Location: Lincoln, CA Posts: 5,967	904 behind the 4cyl. 999 will work also. Both have 23 spline outputs and will take a D300 no problem. __________________ Don't be "THAT GUY" on the trail. www.voodoowax.com

06-19-2004, 10:54 AM	#4 (permalink)
bluebellyday Registered User Join Date: Jul 2001 Member # 5959 Location: Delaware Posts: 328	The bell housing is diffrent on the 4 cylinder trannys. you can not use one off a 4.0 or other 6 cylinder model. I just pulled mine while swaping in a 4.0 and new transmission. but the posted spline is correct. 23 spline on all autos. Your tranny should be a 30RH look here http://www.off-road.com/jeep/tech/trans/ __________________ [SIZE="3"][b]“The way to stop discrimination on the basis of race is to stop discriminating on the basis of race."[/b][/SIZE] Chief Justice John Roberts Last edited by bluebellyday; 06-19-2004 at 11:00 AM.

06-19-2004, 05:51 PM	#5 (permalink)
Stinger124 Registered User Join Date: Dec 2003 Member # 25255 Location: Texas Posts: 382	I am running a 904 on my 4 cylinder.. It all works great, very nice to have the automatic. __________________ Got me a Buggy !!! Now the real fun should begin..

06-20-2004, 03:32 PM	#7 (permalink)
Stinger124 Registered User Join Date: Dec 2003 Member # 25255 Location: Texas Posts: 382	Why is that ?? __________________ Got me a Buggy !!! Now the real fun should begin..

06-17-2004, 03:48 PM	#3 (permalink)
ehko Registered User Join Date: Apr 2002 Member # 11302 Posts: 38	This is a completely retarded question... but are the bellhousings on the 999 and 904 the same? So I could technically grab a 999 off an older CJ and bolt everything to my 2.5L without any adapters? Thanks for the reply slut.

06-19-2004, 08:53 PM	#6 (permalink)
deadandcompany Registered User Join Date: May 2004 Member # 30230 Location: Reno,NV Posts: 1,343	I hope its flat where you live!

06-20-2004, 10:29 PM	#8 (permalink)
ehko Registered User Join Date: Apr 2002 Member # 11302 Posts: 38	Sorry guys... just to confirm again... The Dana300 will be a direct bolt up to a TF904 right? How could I get the 999 to work? Last edited by ehko; 06-20-2004 at 10:30 PM.

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