26 REAR AXLE PINION POSITION SHIM SELECTION Install pinion master of Pt. no. 2698 5890 3520 over the inner bearing cup seat. Install dial gauge on special tool Pt. no. 2698 5890 3520. Set the dial gauge to 0 (zero), on a surface plate at highest point. Install special tool depth gauge on differential side bearing housing. Install dial gauge, such that the plunger is in contact with pinion master. Rock the special tool depth gauge. Record only the reading when the indicator is at the highest point. Let it be ' X' Fig. 42 To calculate the shim thickness proceed as follows. Shim thickness required = x - etched value on pinion (when etched+ve) = x + etched value on pinion (when etched-ve) Assembly pinion bearing cup Drive the inner bearing cup into the carrier using Installer, rear pinion bearing cup Pt. No. 2698 5890 35 09 and handle Pt. No. 2698 5890 35 06. Fig. 43 Assemble the outer pinion bearing cup into the carrier using Installer, front pinion bearing cup Pt. No. 2698 5890 35 08 and handle Pt. No. 2698 5890 35 06. Fig. 43 Fig. 42 Fig. 44
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