GM Transmissions - Page 2

Rattletrap · 09-15-2011, 09:30 PM

So if I have a 4l60e PCM will it control the 65e? guess it might, the TBSS and GTO have a ECM and TCM where as most of the others have both in the same unit....

gearmesh, inc. · 09-15-2011, 09:40 PM

Quote:

Originally Posted by Rattletrap

So if I have a 4l60e PCM will it control the 65e? guess it might, the TBSS and GTO have a ECM and TCM where as most of the others have both in the same unit....

It doesn't matter if there is a separate TCM or not. If your donor car that you got your harness and PCM and/or TCM out of has a plug to plug into the 60/65, it will work. The internal electrics of the 60 and 65 are the same and they both share the same bulkhead plug at the right rear of the trans.

Rattletrap · 09-15-2011, 09:42 PM

gotya!

minytrker · 09-16-2011, 08:37 AM

You can run the motor and 4l60/4l65/4l80 all off the same pcm if you have a 99+ LS1 PCM and harness.

Rattletrap · 09-16-2011, 08:47 AM

its a 01 truck harness.

minytrker · 09-16-2011, 06:58 PM

Quote:

Originally Posted by Rattletrap

its a 01 truck harness.

you can run any 4l60/4l65/4l80 with that harness

gearmesh, inc. · 09-16-2011, 11:12 PM

If the PCM and harness was originally running a 60E/65E, then it will run with the existing arrangement. If you step up to the 4L80E, then a small adapter harness and a reprogram of the PCM/TCM will be needed. Now if the truck you got the harness out of was originally for an 80E, then a short adapter harness would be needed to plug into the 60E/65E and the PCM/TCM would need programming to run the 60E/65E. At least you wouldn't have to obtain another PCM/TCM for either trans you decide to run. GM LS series PCMs are pretty flexible from a hardware standpoint.

09-15-2011, 09:30 PM	#21
Rattletrap Senior Member Join Date: Jun 2008 Posts: 402	So if I have a 4l60e PCM will it control the 65e? guess it might, the TBSS and GTO have a ECM and TCM where as most of the others have both in the same unit.... __________________ 71 C10 LWB 6.0/4l80e swap

09-15-2011, 09:42 PM	#23
Rattletrap Senior Member Join Date: Jun 2008 Posts: 402	gotya! __________________ 71 C10 LWB 6.0/4l80e swap

09-16-2011, 08:37 AM	#24
minytrker Senior Member Join Date: May 2008 Posts: 1,089	You can run the motor and 4l60/4l65/4l80 all off the same pcm if you have a 99+ LS1 PCM and harness. __________________ 1999 Z28 Camaro\|Cut up 2003 CC Duramax Dually\|19.5 w/245/70/19.5\|5in exhaust 2009 G8 GT 408hp/402tq sae\|Rotofab CAI\|LS9 Cam\|Headers\|GXP Mufflers\|Custom System 2009 Tahoe stock

09-16-2011, 08:47 AM	#25
Rattletrap Senior Member Join Date: Jun 2008 Posts: 402	its a 01 truck harness. __________________ 71 C10 LWB 6.0/4l80e swap

09-16-2011, 11:12 PM	#27
gearmesh, inc. creepy azz cracka Join Date: Nov 2008 Location: Summerville Posts: 1,587	If the PCM and harness was originally running a 60E/65E, then it will run with the existing arrangement. If you step up to the 4L80E, then a small adapter harness and a reprogram of the PCM/TCM will be needed. Now if the truck you got the harness out of was originally for an 80E, then a short adapter harness would be needed to plug into the 60E/65E and the PCM/TCM would need programming to run the 60E/65E. At least you wouldn't have to obtain another PCM/TCM for either trans you decide to run. GM LS series PCMs are pretty flexible from a hardware standpoint. __________________ "I came into this world kicking, screaming,and covered in someone else's blood, I have no problem leaving the same way!" ÔÇ£If you carry a gun, people will call you paranoid. ThatÔÇÖs ridiculous. If I have a gun, what in the hell do I have to be paranoid about?ÔÇØ -Clint Smith, Thunder Ranch.