garyc Posted February 15, 2010 Report Posted February 15, 2010 My "63 R1 has a TT axle with a metal tag on it with the numbers 450 on it. At 60 mph I'm taching about 2700 rpm's. Any info on this rear end grear ratio would be appreciated. Any suggestions to lowering ratio and costs of doinfg so?
1963r2 Posted February 16, 2010 Report Posted February 16, 2010 45c relates to the clutch pack inside the diff. There will be another tag with the ratio on there. pb
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