rlj308

hello again guys in my torrie i have 4.11 gears in the nine inch and as much fun it is winding the speedo all the way round to and some i would like to get as close to accurate as possible speedo readings , the trimatics came out with a range of different speedo drive gears i have a brown ,red ,white, green and beige. does any one no which to use for my ratio the trimatics fitted to utes and stuff would have had around what i am looking for but what colour where they? would i need a drive whit more gears or less to slow my speedo down?


ps hope everyone had a blast at the cruise whole lota tuff tuff cars!!!!

HQ_SS

Hj parts book shows
dark blue 22 teeth for 3.55 ratio
yellow 24 teeth for 3.90 ratio
green 21 teeth for 4.44 ratio but you also must run the different driven gear inside
the gearbox for that one to read right.
Paul.

400HPONLPG

HE we go again , what KPH is your speedo error , it will roughly translate as 1 tooth per 5 KPH . So if your reading 5K fast at the speedo , add 1 tooth , 10 K fast add 2 teeth ,15 K fast add 3 teeth. What colour is your driven gear now ?
the range is 19 to 25 teeth ,sounds like the LIGHT BLUE 25 teeth is what you will need .

EVL253

what the man ^ said.u need to know what colour gears u have in it now and how far out the speedo is.

dont go off the holden book cause tyre size affects it. what ive got in mine with 3.55's is 100% accurate but doesnt match up with what the holden book says

__________________
manuals have 3 pedals.
1: the loud pedal
2: the oop's that was the cops pedal rifle
3:the gearbox smashing pedal

rlj308

i have 13" tyres the speedo is out 17km i am currently using the bown gear which has 24 teeth. the red one i have has 23 teeth the green has 21 the white has 20 and the beige is 24.

allports

The part number your looking for is 744 8810 you may not find it at a Holden dealer now days. Its a 3.9 14" gear for HQ HJ on. On the books since for ever. They were on as an option only. I have 2 of theses gears. 1 is in a car. Some time today I'll take a pic and post it up (if I get time)

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
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Without deviation from the norm, progress is not possible. Frank Zappa

allports

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

rlj308

would you part with that one??

HQ_SS

7444810 25 tooth Light blue gear also came out std on a 4cyl LH Torana with Trimatic and 3.55 gear ratio.
Paul.

allports

Yes, It looks dirty but new, never been used, floating in my tool box for 20 years.

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

allports

correct it needs a 7 tooth drive gear not the usual 8

__________________
If you plant a cucumber, you get a cucumber!
Two things are infinate,the universe & human stupidity, and Im not sure about the universe.
Albert Einstein
Without deviation from the norm, progress is not possible. Frank Zappa

HQ_SS

I was going to ask what the difference was between the two driven gears and you have done that.
But I am a little bit confused still.
I have 12 6 tooth gears and 1 7 tooth gear.
I have 3 speed driven gears that are 6 tooth and 4 spd driven gears that are 6 tooth and they run left to right.
Now I have 1 gear that is 7 tooth and runs the opposite way to both of the other ones, Right to left.
So from your description the 7 tooth would have come from a 4.44 equipped vehicle, is that right.
I have attached a picture to show what I am talking about.

Thanks Paul.

400HPONLPG

Yuse guys cant count , there is a Blue and a white Drive gears right ?
white is a ten 10 toother and blue is nine 9 , you have to count the number of teeth in Mesh , not the number of teeth across the drive surface.Blue was in most late model V8's and White in 6 Cylinder jobs , though they did mix it up a bit
Have a look at rarespares catalog
https://rsp-secure.com/rarespares/de...20HX%20HZ%20WB

HQ_SS

Now I am more confused I have both of those white gears and a green and also a blue.

So is the green a white that has been recoloured by old oil or another type again.
Then that still does not explain the gear with the teeth running the opposite way to all the others and that does have one extra tooth to the rest.
I understand now what you mean by the number of teeth in mesh.

Paul.

400HPONLPG

On the Drive gears , is the bore/spline exactly the same ?, otherwise you might have the 3 spd all synchro job found behind the 2fluffy3 .