Special Tools Required
Install 1st gear, 2nd gear, 3rd gear, the 33.2 x 40 x 26 mm collar, the 29 mm cotters, and the 33 x 45 x 7.8 mm collar on the countershaft, and secure them with the snap ring.
Install the needle bearings and the 4th-5th gear.
Slide the reverse selector hub (A) over the countershaft (B), then press it in place using the driver handle (40 mm I.D.) and a press.
NOTE: Some reverse selector hubs are not press-fitted, and can be installed without using the a press.

Secondary HO2S Replacement
Special Tools Required
O2 Sensor Wrench Snap-on S6176 or equivalent, commercially available
Disconnect the secondary HO2S connector (A).
Raise the vehicle on a lift.
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Reassembly
Install the upper spring seat (A) to the upper spring seat clip (B).
NOTE: Make sure to securely set the upper spring seat to the hook (C) on
the spring seat clip.
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Engine Coolant
Adding Engine Coolant
If the coolant level in the reserve tank is at or below the MIN line, add coolant
to bring it up to the MAX line.
Inspect the cooling system for leaks.
Always use Honda Lo ...