RPM Calculator

Popular Transmission Ratios - use for input below TRANSMISSION 1ST 2ND 3RD 4TH 5TH GM Muncie (M20) 66-74 2.52 1.88 1.46 1.00 n/a GM Muncie (M20) 63-65 2.56 1.91 1.48 1.00 n/a GM Muncie (M21/M22) 2.20 1.64 1.28 1.00 n/a GM Powerglide 1.76 1.00 n/a n/a n/a GM Turbo Hydra-Matic 350 2.52 1.52 1.00 n/a n/a GM Turbo Hydra-Matic 400/4L80E 2.48 1.48 1.00 0.78 n/a GM Turbo Hydra-Matic 2004R 2.74 1.57 1.00 0.67 n/a GM Turbo Hydra-Matic 700-R4/4L60E 3.06 1.63 1.00 0.70 n/a Tremec 3550/TKO 3.27 1.98 1.34 1.00 0.68

Speedo Gears Link - Team Chevelle  

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