Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Acura TL BaseFACTORY OEM SERVICE PROCEDURE
Countershaft Reassembly
Special Tools RequiredΒ
Driver Handle, 40 mm I.D. 07746-0030100
- Slide the park gear (A) over the countershaft (B).
- Place the park gear (A) on press bases (B), and place a spacer (C) between the countershaft (D) and the press to prevent damaging the countershaft.
- Install the park gear using a press.
- Install the 53 x 57 x 20 mm needle bearing (A), 1st gear (B), 5th gear (C), the 42.5 x 52.5 x 2.5 mm thrust washer (D), the 5th gear collar (E), the selected 42.5 mm thrust shim (F), and 2nd gear (G) on the countershaft (H). Install 2nd gear and 5th gear in the direction shown.
- Install the ball bearing (A) over the countershaft (B), then press it into place using the 40 mm I.D. driver handle and the press.
- Secure the final drive gear part of the countershaft in a bench vise with wood blocks, install a new lock bolt (A), and tighten it to 125 N.m (12.7 kgf.m, 92 lbf.ft). The lock bolt has left-hand threads.NOTE: After this procedure, remove wood chips that may be stuck to the gear.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
