Thread: 300SD tachometer not working after engine swap
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Old 12-24-2015, 08:22 PM
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mach4 mach4 is offline
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Quote:
Originally Posted by jack.stew48 View Post

i just recently put a 3.07 differential in the car (from the original 2.88) and that did not make any difference in the tach..
It wouldn't....tach measures engine speed while the differential would affect car speed (speedometer)
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