VP VN gearbox Numbers

[E_ri_k]

Hey there, just a quick question about the model numbers on the gearboxes for VN's and Vp's.

My auto VP transmission is a MD8
My manual VN transmission is an M78

Now im wondering:
Are the Manual gearboxes in VP's also M78's?
And the auto VN's are they MD8's?

Thanks if guys can help me out.
Cheers

[Blown V6 Hatch]

Vn-vp ran the same auto trans & manual gearbox! So yes the code number will be the same on both models.

[E_ri_k]

Ok great, thanks alot
Cheers

[tyrefryer]

sorry to bump an old thread but if they ran the same box whats the difference with the number printed on top...like my VN one has 1HD and my VP has 4HD n i know the VR has 5HD for some...but does that change anything?

[jas98]

i dunno if this is true but i have herd that if u replace the auto in the car (vn/vp) then u have to replace it with an auto with the same number??? i doubt.. but i do remember reading this somewhere

i too will like to know what is the differance with the differant numbers?

[STEALTHY™]

Can you get a pic of the compliance plates where those numbers are?

They sound like a trim code or something.

VN-VS i can say are the same - MD8 is Auto, and M78 is manual.



This is my VPs break down just to give you some reference points.

6H8 VP X 19 U P L123456 (build number changed for privacy, hence 123456)

World Manufactures Code
6H8: General Motors Holden

Model:
VN: VN Model
VP: VP Model
VR: VR Model
VS: VS Model

Luxury Code:
K: Executive
L: Berlina
X: Calais

Body Code:
19: Sedan
35: Wagon
80: Ute

Engine Code:
H: 3.8L V6
U: 5.0L V8

Model Year:
P=1993

Tag Number:
L= Adelaide - Elizabeth Plant
123456 = build number



And my option list just for kicks

19l - exterior paint - anthracite - w/ a9f
62l - interior trim - classic beige
a8h - ??
a8x - international pack
a9a - vp upgrade 23oct '92
aq9 - front seat bucket - passenger and driver reclining
c61 - a/con front auto control
gu4 - axle ratio - rear 3.08:1
je5 - anti lock braking system
nv7 - variable effort power steering
ph7 - wheel - 6.5jj X 15 alloyed style
qak - tyre - 205/65r15-sl-r-st-tl-94v
va1 - radiator standard
xw6 - paint finish metallic

[tyrefryer]

Can you get a pic of the compliance plates where those numbers are?

They sound like a trim code or something.

those numbers arent on the comp plate, the plate does say MD8 on all of them but then again the engine code is the same from VN up to the VS and didnt look any newer than that but how can the VS engine be same as VN as they say they are all LG2 i think
those numbers are whats printed on the gearbox itself, like a little sticker on top with codes...

and i will also very soon find out whether the 1HDM is interchangable with the 3HDM as im half way thru changing a motor over but i kept the original g/box which was a 3HDM...so far looks as tho everything is pretty much the same

[STEALTHY™]

ohk, sounds like your talking about the ratios in the box. But i don't know what they mean (might have a look at mine and see what it says, its sitting in the boot after all haha)


Also the VS engine isn't the same as VN, there was 4 codes, buick V6, V8, Ecotec V6 and super 6, i just too out the 2 that weren't applicable to my car.

[tyrefryer]

i dont think its ratios cos i know the two ratios are identical for these cars (1HDM and 3HDM) i think it must be like a model of box or something cos it just keeps counting up, last i think i saw was a 9HDM which was in the VY.

and i know theres definitly a difference in the VS and VN motors but like on the compliance plate where it says TRANS: MD8 just before that it has ENGINE: LG2 (i think) and i was comparing and saw a VRs2 and VS has TRANS: M30 but the engine code was the same on the VS as the VN which made me think that MD8 doesnt mean alot and that it has more to do with the #HDM...oh well

[88GreenVN]

Here is 2 types. Manual & auto

I'll look up the other codes tonight when I get home from work.

[hakhawk]

heres an interesting pdf, i found it a while ago. it lists all the gearbox versions for each model commodore. i think the numbers on the box, eg. 4hdd, 6hsd, etc. denote the type of gearbox, 4l60 or 4l60e, floor or column shift, supercharged, and in general, are just labelled after each update. ie, they fix a niggly problem in one version, it gets a new label, so you know it doesnt have that problem

http://www.acdelco.com.au/Assets/acd..._catalogue.pdf

[tyrefryer]

the photo of the auto VN comp plate has a different engine code :S and its a 91 model and then the 88 model has the LG2 engine code which is the same as the code written on the plate of even a VS

[tyrefryer]

and also that pdf will come in very handy...thanks hakhawk

[88GreenVN]

the photo of the auto VN comp plate has a different engine code :S and its a 91 model and then the 88 model has the LG2 engine code which is the same as the code written on the plate of even a VS

The LB9 is the V8 engine code. LG2 is just a 3.8L V6 code.

The VT has the largest group of engine codes in the VIN. EG the VN has a H for a V6 or a U for the V8 or K for the Group A.

A VT can have - H, U, L, M, N, P & F. Thats a 3.8, 5.0, 5.7 (Holden) 5.7 Gen3. The N is a 195i engine........

[Clutchy]

i dunno if this is true but i have herd that if u replace the auto in the car (vn/vp) then u have to replace it with an auto with the same number??? i doubt.. but i do remember reading this somewhere

i too will like to know what is the differance with the differant numbers?

We had a vp box in a vn untill it packed it in so now it has a vn box back in it.

[cruzin81]

I have a Series 1 3.8L Buick with a shift kitted auto in it, and I have a series 2 3.8L Buick with 5spd Manual. Series 1=Sedan, Series 2=Wagon. the Series 1 is a 4.2L stroker and I wanted to put it in wagon with 5spd behind it. This could not be done because series 1 and series 2 both have different input/output shafts on the gearbox/transmission.