2005 Envoy Transmission connector Pinout?

[JayArr]

Can anyone post this up? I don't have my full Envoy OEM manuals anymore and I want to compare the pinout of the transmission from a 2005 Envoy to a 2006 Escalade. I know the Escalade has 5 pinion plantetary gears and some beefed up parts but I want to know if I could temporarily put the Envoy's 4060E in the Escalade for a month or so while I rebuild the Escalades transmission. It would be nice if the electrical was the same and I could just plug the Escalades wiring harness directly in.

 

[Mooseman]

Found these at Charm:

Connector Views — 2005 Chevy Truck TrailBlazer 4WD L6-4.2L VIN S Service Manual | Operation CHARM

Detailed repair manual for the 2005 Chevy Truck TrailBlazer 4WD L6-4.2L VIN S.

charm.li

4L60-E/4L65-E/4L70-E Automatic Transmission — 2006 Cadillac Truck Escalade/ESV AWD V8-6.0L VIN N Service Manual | Operation CHARM

Detailed repair manual for the 2006 Cadillac Truck Escalade/ESV AWD V8-6.0L VIN N.

charm.li

If the Caddy has the 4L80:

4L80-E/4L85-E Automatic Transmission — 2006 Cadillac Truck Escalade/ESV AWD V8-6.0L VIN N Service Manual | Operation CHARM

Detailed repair manual for the 2006 Cadillac Truck Escalade/ESV AWD V8-6.0L VIN N.

charm.li

I do know that the 4L80 is significantly different and doesn't interchange with the 4L60 without changing physical stuff like the mount and driveshaft.

 

[JayArr]

Thanks Mooseman

Luckily, my 2006 Escalade has RPO code M32 which is listed as:

4L60E HD

Which is what they called 4l65Es at the beginning.
(The 4L80E was RPO code MT1)

So it's the same case and will physically fit but I wanted to know if the electronics are the same.

Thanks for the links, I'll check them out.

EDIT: Looks the same to me, I think I can drop this 4l60E in place of the 4L65E. The gears and shafts inside aren't as HD but the computer won't know there is a difference. Should be a good temp replacement when I want to pull the 65E out for rebuild.

 

[Mooseman]

I'm pretty sure that even the 4L65 and 4L70 are the same, just some beefed up internals to survive behind the 6.0L. From teardowns I've seen on YT, they're the same.

A quick search gave me this:

The 4L65E shares the same exterior parts but have stronger internals such as 5 pinion planets compared to 4 in the 4L60E. 4L60E uses a 6.5" depth bell with 6 bolts for non gen 3 LS applications and a 7" depth bell with 7 bolts for LS applications. The 4L65E/70E uses a 7" depth bell and 7 bolts.

 

[JayArr]

Interesting!

So I may have to swap the front bell to get this 4L60E from the 4.2litre LL8 to work behind the V8.

 

[Mooseman]

Definitely the bellhousing is different as well as the torque converter however I have heard of people with a V8 using the 4.2 TC since it has a higher stall speed. Even the starter isn't on the same side. And no drag racing neither

 

[JayArr]

Yep, no drag racing and no towing but I'm thinking the 4L65E in the Escalade will need a refresh in the next year or so and this way the vehicle can keep running while I spend a few weekends in the garage working on the trans.

I'd like to get proficient enough that I could start on a Saturday morning, pull a trans, rebuild it and have it back in the vehicle running by Sunday night. Two long days from start to finish, maybe 20 hours?

I think the last rebuild was close to 24 hours just for the trans part and the last swap was 12 hours? So I've got to up my game a bit. I spend a fair amount of time checking and rechecking where all the parts from the kit go to make sure I don't get to the end and have an o-ring left over. I think repetition will help with confidence and speed. I've built a bunch of jigs, jacks and supports for the swap portion so I think the next one may be in the 8 hour range.