A/T - 4N71B Overdrive Case
TSB 88-45 (Oct)SUBJECT: NISSAN 4N71B
Overdrive Case
The illustrations show the correct installation of small parts installed into the overdrive case, and the lubrication plug in the drum support.
Some models use a one-way plug in the overdrive case. Others use a one-way orifice checkball capsule. These parts may fall out during disassembly and can be easily misplaced.