Thread: Source for Speedometer correction box?
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Old 09-10-2004, 06:37 PM
G-Benz's Avatar
G-Benz G-Benz is offline
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
Man!

I did this MANY years ago for my VW when I swapped the OEM speedo for a big AutoMeter unit.

I don't have the detailed info anymore but they were called "California Speedometers". I can't recall if you still have the mechanical or electrical setup on yours, but mine (of course) was mechanical. All I had to do was tell them the speed reduction/acceleration ratio and mark the portion of the cable that I sent to them to have the "black box" installed.

The ratio info in your case would be the difference between the gearing on the the diif swap...in mine, I had to figure out (based on the manufacturers specs of the new speedo) what the offset was for accurate readings...
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