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Toymods » Tech & Conversions » Sprinter speedo drive - 4.3 diff

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AE86slut
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Baulko Hillo
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April 2004
Sprinter speedo drive - 4.3 diff Tue, 01 June 2004 12:32 Go to next message
Alright boys, anyone know which one I need (number of teeth or whatever)????

Cheers,

Teh Slut.
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ae95
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Perth, WA
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Re: Sprinter speedo drive - 4.3 diff Tue, 01 June 2004 15:00 Go to previous messageGo to next message
i would also like to know.

speedo goes off the clock in 4th
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AE86slut
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 05:09 Go to previous messageGo to next message
bump.

(Sorry. really need to know asap)
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EVOSTi
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cambo
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      no
Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 08:45 Go to previous messageGo to next message
why dont you find out what gear is in the gearbox of a car with such a diff ratio. for example if your using a hilux diff and you know what model hilux came with a 4.3 ratio diff, find out how many teeth were on the speedo in its gearbox. do this by either going to the wrecker or trying toyota spare parts.
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AE86slut
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 09:40 Go to previous messageGo to next message
Well what did a TRD LSD centre come out in that has a T50???? Razz

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EVOSTi
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cambo
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 10:05 Go to previous messageGo to next message
it doesnt matter what gearbox it is they all run off the output shaft so it doesnt matter what car its from. find out which model hilux had a 4.3 diff centre. ofcourse that wont work if the speedo drive from hilux's have different teeth on them (which is unlikely but possible). either way its gonna be a lot of stuffing around but i dont think anyones gonna be able to tell you straight out, but you might get lucky.
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AE86slut
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 10:10 Go to previous messageGo to next message
Far out I surprise myself with my stupidity sometimes... thanks for pointing out the bleedingly obvious dude Embarassed
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ae95
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 10:49 Go to previous messageGo to next message
is there another way to recalibrate?
what do recalibration shops ussually do?
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EVOSTi
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cambo
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Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 11:39 Go to previous messageGo to next message
my guess is they would do something with the dash. better to sort it mechanically so if you ever wanna change dash you can without trouble.
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Norbie
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May 2002
Re: Sprinter speedo drive - 4.3 diff Wed, 02 June 2004 23:39 Go to previous messageGo to next message
EVOSTi wrote on Wed, 02 June 2004 20:05

it doesnt matter what gearbox it is they all run off the output shaft so it doesnt matter what car its from.

That's not entirely true. The rolling diameter of the tyres has a big influence on the speedo, and obviously that can vary significantly between cars.

As for recalibration, that's usually done using a little "gearbox" attached to the outside of the transmission which makes the speedo cable spin a little faster or a little slower as required.
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gabe
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Perth
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June 2002
Re: Sprinter speedo drive - 4.3 diff Thu, 03 June 2004 09:57 Go to previous messageGo to next message
ae95 wrote on Wed, 02 June 2004 18:49

is there another way to recalibrate?
what do recalibration shops ussually do?


I know of a place in perth that will sell you a ratio box, a small box that you put in series with your speedo cable.

You need to supply them with 3 different speeds. What speed your speedo says you are doing and your actual speed at 60, 80 and 100 kays.

This will also take into consideration your tyre rolling diameter too!

From memory they are around 80 bucks.
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Sprinter
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Melbourne
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September 2002
Re: Sprinter speedo drive - 4.3 diff Thu, 03 June 2004 13:59 Go to previous messageGo to next message
I can tell you which speedo gear you need but I need some more info. What size tyres are you running?

I assume its a T50? If so is it and Aus or JDM box? Aus box had a 6 tooth worm gear and the JDM had a 5 tooth worm gear.


Assuming tyres of 205/50/15 you are looking for a speedo gear ratio of 3.67.
So if you have a JDM T50 then the closest speedo gear is the 5x18 (3.6).
If you have an Aus T50 then you have a match with 6x22 (3.67)

HTH,
Denis

[Updated on: Thu, 03 June 2004 14:04]

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Arch
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Adelaide
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January 2004
 
Re: Sprinter speedo drive - 4.3 diff Thu, 03 June 2004 14:11 Go to previous messageGo to next message
ae95 wrote on Wed, 02 June 2004 01:00

i would also like to know.

speedo goes off the clock in 4th


mines stock and in 4th gear im just near the top of the guage (190kmh)

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ae95
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Perth, WA
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May 2003
Re: Sprinter speedo drive - 4.3 diff Thu, 03 June 2004 15:18 Go to previous message
ahh, i forgot

i didnt swap the speedo cable from the jap spec, which the diff came in. Factory 4.3 ratio. I hope it fixes it!
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