ADJUSTING THE SHIFT FORKS

Adjustment can be done best by using a suitable jig (see special tool section). If you measured each fork's position prior to removal simply reinstall the forks to your recorded measurements. If using a jig do the following:
1) Make drive pinion shim adjustment, if necessary, prior to shift fork adjustment.
2)Install the assembled gear carrier into the jig with pinion shaft shim in place. Tighten bolts to 36 ft. lbs.
3)Lock the main shaft from rotating using the crank handle (see special tool section).
4)Engage first or second gear.
5) On older models tighten both the drive pinion nut and the main shaft nut to 87 ft. lbs. On newer models install shap rings on the shafts.
6)Bend over the lock tabs on older models.
7) Install the gear shift housing and selector arm.
8) Adjust the first-second and third-fourth selector forks so that they move freely in the operating sleeve. The forks must be this way when engaged in different gears as well as when in neutral. The shafts should be turned with the crank after each check and then be rechecked.
9)The reverse sliding gear should be set between the operating sleeve and second gear of the main shaft, when second gear is engaged. The reverse gear should engage in the pinion shaft-reverse gear when the reverse selector shaft is pulled. The 'T' handle (see special tools section) makes shifting the gears easier.
10)Tighten locking bolts on the selector forks to 14 ft. lbs.
11)Remove the transmission from the jig.

BEFORE INSTALLING THE TRANSMISSION INTO THE MAIN CASE DO THE FOLLOWING: (if they were removed)

1)Install the main shaft needle bearing, it can be drifted into place using a 7/8" deep well socket.
2)Install the two needle bearings for the reverse gear shaft with the spacer between them - align the spacer so that the slotted hole is aligned with the securing bolt. These parts can be drifted into place using a 13/16" deep well socket.
3)Lock the main shaft bearing and the reverse gear shaft bearings into place with the retainer bolts (in the sides of the case).
4)Install the reverse gear shaft and its thrust washer into the bearings
5)Install the woodruff key for the reverse idler gear into the reverse gear shaft then install the gear and snap ring.

Before installing the transmission into the case adjust ring and pinion if required.

RING AND PINION ADJUSTMENT MUST BE CARRIED OUT IF:

1)Ring and pinion were replaced.
2) Gear case (main one) or main case and transmission carrier case have been changed.
3)Noise in drive train found to be caused by sloppy ring and pinion set-up.