Transmission

Transmission Specifications & Torque Values

GENERAL DATA

Reference Mainshaft Countershaft Ratio

1st gear 18 teeth 31 teeth 3.24:1 2nd gear 23 teeth 27 teeth 2.21:1 3rd gear 27 teeth 23 teeth 1.60:1 4th gear 19 teeth 29 teeth 1.23:1 5th gear 32 teeth 17 teeth 1:1

FITS AND TOLERANCES

Item Standard Fit Wear Limits

Countershaft bearing installation depth (case left side) Flush to 0.010 in. below —

Main drive gear seal installation depth 0.050 in. below — Mainshaft 5th gear inner bearing installation depth 0.060–0.080 in. — Mainshaft 5th gear outer bearing installation depth 0.315–0.340 in. —

FASTENER TORQUE

Part Torque Value

Countershaft nut 45–55 ft-lbs Mainshaft nut 45–55 ft-lbs Shift drum support block mounting bolts 7–9 ft-lbs Shift paw adjusting screw locknut 20–24 ft-lbs Shift rod jam nut 10–12 ft-lbs Transmission shift rod capscrews/nut 13–19 ft-lbs Transmission-to-frame 33 ft-lbs Transmission trap door mounting bolts — 1/4 in. 7–9 ft-lbs Transmission trap door mounting bolts — 5/16 in. 13–16 ft-lbs