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4.88 to 4.3 diff ratio change- does my VSS need calibration?

Tech Talk for Cruiser owners.

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4.88 to 4.3 diff ratio change- does my VSS need calibration?

Post by Luxxer »

Gday guys,

Just changed from 4.88s to 4.3s in my Commodore V6/88 Hilux

Given that its manual trans with cable speedo, does the VSS (Marks transfer case mounted unit) really need calibration for the new diff gears? I mean, seeing as how the VSS is not controlling any auto trans functions, all it really needs to tell the ECU is when its deaccelerating, yes??

Any input appreciated.
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Joined: Fri Jun 16, 2006 6:49 pm
Location: Melbourne

Post by Struth »

It tells the ECU a bit more than that but you don't NEED to re calibrate it.

Cheers
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