Does anyone know which of the above transmissions would be in a 2005 silvy ext cab 1500 4x4 with a 5.3L?

4L60E :smile:

60 or 65???? Chevy started putting the 4L65E in trucks in 2005.

4L65E was designed for the LS6 405 HP Corvette. Have never seen one in a 2005 5.3 truck. Don't believe it was offered. :smile:

Could have put one in SS 6L. Not sure.

Its late, I can't remember too well but I think the 2006 Vortec-Max may have the 4L65E.

Just though of something. The RPO code for the 4L60E is M30 and should be on the sticker in your glove box. I looked up the RPO code for the SS and it is M32. I havn't found out what an M32 is yet. :confused:

Allright just broke the code. The 4L65E RPO code is M32. Thats what is in the 6L SS and The 6L GMC Denali.

Also the Vortec-Max has an M70=4L70E. and there is a NM8= 4L85E for heavy duty in 2006.

Have a great new year. :smokin:

In '05 there are some M32 other than SS and Denali, I have one.

In '05 there are some M32 other than SS and Denali, I have one.


Thats probably because you have a 6L. Acording to the GM rpo codes no 5.3 came with an M32. I guess any thing can end up in any thing. And there are two m32s. One a heavy duty 4L60E and a4l65E. Who knows what these were in. :smile:

Have a great new year.

I agree, you never know for sure what will be in them until you have them...

Happy New Year!