ssgchandler Posted October 13, 2016 Share Posted October 13, 2016 Anybody know how to get more speed out of a 1977 cruseliner with 300 and 5 speed? Like to get 70 out of her. Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/ Share on other sites More sharing options...
0 alex g Posted October 13, 2016 Share Posted October 13, 2016 How fast are you now? You can run taller rubber. Or change rear end ratios. Sent from my SM-G386W using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/#findComment-348650 Share on other sites More sharing options...
0 mrsmackpaul Posted October 13, 2016 Share Posted October 13, 2016 What speed are going now at 2100 rpm ??? Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/#findComment-348651 Share on other sites More sharing options...
0 TeamsterGrrrl Posted October 14, 2016 Share Posted October 14, 2016 IIRC, fastest final drive they offered was a 3.65 or so, which would give 67 MPH @ 2100 RPM on 22.5 tires and 70 on 24.5s. Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/#findComment-348675 Share on other sites More sharing options...
0 mrsmackpaul Posted October 14, 2016 Share Posted October 14, 2016 would that be indirect or over drive ??? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/#findComment-348683 Share on other sites More sharing options...
0 TeamsterGrrrl Posted October 14, 2016 Share Posted October 14, 2016 Direct, I don't believe an overdrive 5 speed was offered in '77. Quote Link to comment https://www.bigmacktrucks.com/topic/47244-more-road-speed/#findComment-348685 Share on other sites More sharing options...
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ssgchandler
Anybody know how to get more speed out of a 1977 cruseliner with 300 and 5 speed? Like to get 70 out of her.
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