lynn Posted April 8, 2012 Share Posted April 8, 2012 I have a MACK / RENAULT PR 100. bus with hub reduction axles. Is there different axles available to raise the top end speed ? or change the diff ratio, or the whole diff. It has a VOITH 3 speed auto with direct { 1.00 ) final drive. Rear axle is 1021- hub reduction.Diff. ratio is 5.12:1 (2.56D / 2.00H) with a top speed of 84 km/h @2100 r.p.m. Any help or ideas ? Quote Link to comment https://www.bigmacktrucks.com/topic/24393-hub-reduction-axles-diffs/ Share on other sites More sharing options...
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