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Speedo gear ratio 200 1980

posted by  Trev29 on  Wed Nov 2 05:33 CST 2011
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last visit: Fri Oct 17 05:56 CST 2014
[RELATED]

I just replaced my 3.91 rear axle with a 3.31 from an '89. Hooked up to an M46, my speedo is now reading about 20% slower. Eg. At 60 kmph (according to GPS) the speedo reads 50.

The speedometer is labeled r=0.585. I have another speedo labeled 0.605. Does anyone know what rear end went with that?

Anybody else done this and got the right speedo and speedo drive gear (in transmission) set up?

--
1980 245 Canadian B21A with SU carb but electronic ignition and M46 trans in Brampton, Ont.







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