Nissan Automatic Transmission Assembly AT-47: Low & Reverse Brake Clearance

This is page AT-47 of an automatic transmission section from a factory service manual, covering steps 10 through 15 of the transmission assembly procedure. Step 10 covers installing the shell and sun gear assembly with the thrust needle bearing and bearing race (illustration SAT275). Step 11 covers installing the low and reverse brake driven and drive plates and retaining plate, secured with a snap ring (illustration SAT274). Step 12 explains measuring the clearance between the snap ring and retainer plate after the low and reverse brake is assembled: the standard clearance is 1.90–2.20 mm (0.0748–0.0866 in) with an allowable limit of 3.8 mm (0.150 in). If the clearance exceeds specification, it can be corrected using a different-thickness retainer plate; a table lists five available plates from 3.6 mm (0.142 in) to 4.4 mm (0.173 in) with part numbers 31667-01X00 through 31667-01X04. Steps 13–15 cover installing the bearing race on the connecting shell, installing the one-way clutch assembly to the rear carrier (illustration SAT390), and installing the thrust washer on the rear carrier. Readers can learn the assembly sequence, clearance specifications, and retainer plate part numbers for adjusting low and reverse brake clearance.