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MAINSHAFT Assembly: Reassembly

  1. Install mainshaft 3rd gear needle bearing and spacer. Check proper alignment of scribe marks on 3rd-4th gear synchronizer hub and sleeve. Press on 3rd-4th gear synchronizer assembly. Ensure keys engage with synchronizer ring slots. Lift and rotate 3rd gear to engage keys with synchronizer ring during assembly process until synchronizer is seated.
  2. Using press tube and adapter with hydraulic press, press 3rd gear, thrust washer, inner cone, friction cone, synchronizer ring and 3rd-4th gear synchronizer assembly onto mainshaft. Ensure groove on sleeve faces 3rd gear. Install synchronizer snap ring. Install new mainshaft small tapered bearing.
  3. Install 2nd gear needle bearing and spacer. Ensure synchronizer keys engage synchronizer ring slots. Lift and rotate 2nd gear to engage keys of synchronizer ring during assembly process until synchronizer is seated. Using press and plate, install 2nd gear, inner cone, friction cone and synchronizer ring. Install 1st-2nd synchronizer assembly. Ensure inside diameter groove on sleeve faces 1st gear.
  4. Install snap ring, synchronizer ring, friction cone and inner cone. Install 1st gear bearing spacer, needle bearing 1st gear and large tapered bearing onto mainshaft.
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