Editing Z31/Nuts and Bolts (section)

== Transmission ==

=== Manual (FS5W71C / FS5R30A / FS5R90A) ===

The 1987 FSM covers the FS5W71C and FS5R30A gearboxes [5]. The 1986 FSM covers the FS5W71C and the BW T-5 (FS5R90A) [14].

{| class="wikitable sortable"
|-
! Location !! Thread (size × pitch, length) !! Years !! Torque (N·m) !! Torque (ft-lb) !! Source / notes
|-
| Transmission-to-engine bolts No. 1 & 2 || — (length 65 mm / 60 mm) || 1987 || 39–49 || 29–36 || FSM MT-8 [5]. Bolt positions in FSM figure.
|-
| Transmission-to-engine bolts No. 3 & 4 || — (length 55 mm / 25 mm) || 1987 || 29–39 || 22–29 || FSM MT-8 [5]
|-
| Transmission to engine || — || 1986 || 39–49 || 29–36 || FSM 1986 MT-32 (single value in the S.D.S. table) [14]
|-
| Drain and filler plugs (FS5W71C, FS5R30A) || — || 1986–87 || 25–34 || 18–25 || FSM MT-57 (FS5W71C), MT-58 (FS5R30A), MA-24, MA-43 [5][12]; 1986 MT-32 (FS5W71C) [14]
|-
| Drain and filler plugs (BW T-5 / FS5R90A) || — || 1986 || 20–34 || 14–25 || FSM 1986 MT-32 [14]
|-
| Rear mounting insulator to crossmember || — || 1986 || 31–42 || 23–31 || FSM 1986 MT-32 [14]
|-
| Rear mounting insulator to rear extension || — || 1986 || 31–42 || 23–31 || FSM 1986 MT-32 [14]. The 1987 MT table says "Refer to section EM".
|-
| Crossmember to body || — || 1986 || 31–42 || 23–31 || FSM 1986 MT-32 [14]
|-
| Transmission mount to body || M10 × 1.5, 20 mm bolt || All || — || — || Size [1]
|-
| Transmission mount to isolator || M10 × 1.25, 20 mm (90 mm) bolt || All || — || — || Size [1].
|}

=== Automatic (E4N71B) ===

The 1986 and 1987 FSM AT sections both cover the E4N71B [6][14].

{| class="wikitable sortable"
|-
! Location !! Thread (size × pitch, length) !! Years !! Torque (N·m) !! Torque (ft-lb) !! Source / notes
|-
| Converter housing to engine || — || 1986–87 || 39–49 || 29–36 || FSM AT-92 [6]; 1986 AT-91 [14]
|-
| Drive plate to torque converter || — || 1986–87 || 39–49 || 29–36 || FSM AT-92 [6]; 1986 AT-91 [14]
|-
| Drive plate to crankshaft || — || 1986–87 || 137–157 || 101–116 || FSM AT-92 [6]; 1986 AT-91 [14]
|-
| Oil pan to transmission case || — || 1986–87 || 5–7 || 3.6–5.1 || FSM AT-92 [6]; 1986 AT-91 [14]
|}