VY LS1 Tonner

[Bunge]

Hi I have been trying to find out what transmission I have in my VY11 V8 Tonner, It has M31 on the ID plate and everywhere else I look has M30 which is a 4L60e. Sorry if I've done this wrong this is my first time at forums, thanks in advance for your help.

 

[_R_J_K_]

The only automatics VYs used was the 4l60e bar a few HSV models that had the 4L65e (largely the Avalanche). What's the 4 digit code on the side of the transmission?

The V6 and V8 4L60e aren't interchangeable as well if that was your next question.

 

[Bunge]

thanks no there is nothing wrong with my transmission I just want know what M31 is, I thought it might be the V8 version of 4L60e 'like the old Holden Ausy 4 speed M20 was six cyl and M21 was V8 version' but when I google it there is nothing! but if I google M30 there is heeps of infomation. I will jack it up later and get the code thanks again. I looked up 4L65e and it uses M32 code.

 

[figjam]

According to this ............ https://www.700r4transmissionhq.com/gm-transmission-rpo-codes/ ............. it is a TH250 3 speed auto. A rare classic !
Just like the MK2 = Doug Nash 4speed manual in my Cross6.
Don't bother asking Holden. HCC will refer you to your local dealer. Your friendly local dealer either doesn't know or won't answer.

 

[Bunge]

Thanks for that well it is a 4 speed transmission so my id must be a misprint I cant find a code laying under the car so I'm just going with 4L60e thanks again

 

[Commo64]

Just like the MK2 = Doug Nash 4speed manual in my Cross6.

They offered 4spd manuals in Aussie AWD Holden's?

 

[figjam]

They offered 4spd manuals in Aussie AWD Holden's?

No ................... MK2 is the transmission code on the Cross6 build plate. Unexplained Holden mystery of 4L60E life.

 

[Bunge]

Hi I found an id code at the rear of my transmission just behind the pan, It is stamped with tiny pin type punches, 3HZD070### from what I can find it is a 4L65e. Is it normal for the transmission to be painted black I had to scratch the paint off to read it.

 

[Just Damo]

Hi I found an id code at the rear of my transmission just behind the pan, It is stamped with tiny pin type punches, 3HZD070### from what I can find it is a 4L65e. Is it normal for the transmission to be painted black I had to scratch the paint off to read it.

If you had to scratch the paint off then probably not. It's not not normal for people to spray the box, but if they have, then they have had it out of the car at some point

 

[Fu Manchu]

I have the list of transmission codes somewhere. Will try find them tonight. Not the M20 type but the details of the full transmission codes.