Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

1ST/2ND Blocker Rings






1. Install three-piece 1st gear blocker ring assembly using a twisting motion to fully seat.

2. Install three-piece 1st gear blocker ring assembly, with needle bearing and bearing sleeve, to first gear.

3. Install three-piece 2nd gear blocker ring assembly using a twisting motion to fully seat.

4. Install three-piece 2nd gear blocker ring assembly, with thrust washer, to 2nd gear.

5. Measure gap between vertical faces of blocker teeth and clutch teeth. Nominal gap is 0.O32-0.O55 inch for new blocker ring assemblies.