The shop manual says that the governed speed was 4000 RPM for the taskforce 283, with the 7.2 gears in mine it tops out at 45 MPH.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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