I recomend the same thing 67 says. I was going 30 mph and the car statred to shake but when I let off the gas it dissapeared. It was the rear U-joint not properly seated into yolk or whatever you call that thingy with U-Bolts.
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66 Mustang Black W/ Black
289 Hi-Po 65'heads, MSD
Lunati High lift Cam
750CFM Carb Heddman Headers
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