Securely clamp the countershaft assembly in a bench vise with wood blocks.

Use a chisel (A) to raise the locknut tab (B) from the groove in the countershaft.

Remove the locknut (left-hand threads) (A) and the spring washer (B).

Support 5th gear (A) on steel blocks (B), then use a press (C) and an attachment (D) to press the countershaft (E) out of the ball bearing ^* (F).

*L15A7 engine:

Needle bearing

Support 4th gear (A) on steel blocks (B), then use a press (C) and an attachment (D) to press the countershaft (E) out of the 4th gear.

Support 3rd gear (A) on steel blocks (B), then use a press (C) and an attachment (D) to press the countershaft (E) out of the 3rd gear.