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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Hey guys, I had my speedometer rebuilt back in March because it was broken. Well ever since I put that new speedometer and speedometer cable in, the needle bounces up and down until I reach about 35 mph and then it acts normal. I installed everything correctly, maybe it's something with the gears in the transmission that turn the cable?