I thought it was the other way around. 442's had the oval bushing and regular cutlass the round ones. I have bought NOS control arms specific to the 442 and they had oval, cross referencing the pt# to GTO and Chevelle SS shows the oval bushing. I think the change occurred in 1970.
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1971 W30 convert, triple green,second owner.
1971 W30 Convert, special order Rally red, completed
68 Camaro Z28,Corvette Bronze,Houndstooth
2016 Porsche Carerra Cab and 2021 C63S AMG ,modern fun.
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