5.3 with 90's 4l60-e?

[v30crewcab]

Is it possible for a ls computer to control a mid 90's 4l60e trans? I am looking at swapping a 5.3 into a 76 pathfinder 4x4 van, and it uses a th350 2wd with a special long adapter to a Ford 205 trans. I know I can just use a regular 700r4, but figured the trans might work better if the computer controls it. But I need to have the 4bolt tailshaft like the older ones use. I have no problem building a custom trans if I can use the newer electronics in the older case. just thought I'd see if anyone else had run into this.

[SlowGreen71]

I'm not sure about the bolt pattern to a 203. But the easiest way I've put a 4l60e to a 205 was a 6 to 4 bolt adapter and a spacer. Both from advanced adapters. No tearing the trans down to change shafts etc. here's a link.
http://67-72chevytrucks.com/vboard/s...d.php?t=754191

Another showing a little more detail of how it goes together.
http://67-72chevytrucks.com/vboard/s...d.php?t=754661

[v30crewcab]

I edited my post. its for a 205. its a special adapter made by pathfinder that I will reuse. The question is wether an ls computer will talk to a 90's 4l60 or will I have to run a 700r for overdrive.

[87Skier]

There's no reason that it can't. There are few issues, some I sure you know about.

First, the input shafts are different, so you need an adapter to run a non-LS transmission with an LS engine:
crank spacer 12563532
6 longer bolts 19257940
flexplate 19260102

Second, in ~95 GM started doing PWM torque converter control. You should use one of these rather than 92-94 trans.

Third, 06+ use an additional sensor, so the wiring is different. If you have a gen IV motor, the ECM/TCM would probably have to be tuned

Be sure to check the harness and transmission pin wiring.

[BR3W CITY]

I'll toss in that fwiw, just make sure its actually a 4l60e there were those sneaky few situations when it was just a 4l60 which would be the same TV cable situation that the 700r4 uses.

[v30crewcab]

cool deal. does anyone know what year they changed from the 4bolt tailhousing to the bigger 6 bolt one?

[87Skier]

Originally Posted by v30crewcab

cool deal. does anyone know what year they changed from the 4bolt tailhousing to the bigger 6 bolt one?

Pretty sure it was 99.

[93Polo]

Originally Posted by 87Skier

There's no reason that it can't. There are few issues, some I sure you know about.

First, the input shafts are different, so you need an adapter to run a non-LS transmission with an LS engine:
crank spacer 12563532
6 longer bolts 19257940
flexplate 19260102

Second, in ~95 GM started doing PWM torque converter control. You should use one of these rather than 92-94 trans.

Third, 06+ use an additional sensor, so the wiring is different. If you have a gen IV motor, the ECM/TCM would probably have to be tuned

Be sure to check the harness and transmission pin wiring.

Looks like the flexplate in my 01 6.0 2500HD. They are known to crack. I replaced mine with a unit from Circle D which has worked great.

[LH Lead-Foot]

The 5.3L Vortec truck engine uses an off-set flex plate that with a little filing inward will match torque convertor pattern. The hub center for eBay for $25 to center crank to convertor nose. That was all it took for mine.