JB Conversions 15-1103 Dana 300 - Manual (Page 8)

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10) Reposition the case in the vertical press to allow the slider ring and
original helical gear to be placed on the front output shaft with a the new
tapered roller bearing supplied in the shaft kit. Before placing the thrust
washer onto the shaft, note the chamfer on the ID edge. Only one side of the
thrust washer is machined with the chamfer. This chamfer should face the
shoulder on the shaft (Fig.11a,11b).
Place the thrust washer onto the shaft so that it rests on top of the shaft
shoulder above the gear. Press the bearing onto the shaft until it stops at the
thrust washer (Fig.11c). Verify the helical gear can turn freely after the press
operation is completed. The fit for this bearing is an extremely light press fit.
It may be possible to slide this bearing onto the shaft without the need for a
press.
FIG: 11a FIG: 11b
FIG: 11c