31020-X2770 TRANSMISSION-AUTOMATIC / NL28LFJ / 3N71B (L28ET) (1) Lookup Code 31020 (1) Replaces 31020-X2778 (1) Supersession(s) 31020-X6703 (2) 31020-X2770 Automatic Transmission Assembly is Lookup Code 31020 in the diagram attached as resource.png (1) Part Fitment (1) ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Make Model Year Trim Engine Important vehicle option details ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Nissan 280ZX 1980-1983 GL 6 Cyl 2.8L L28ET ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 1) https://www.nissanpartsdeal.com/parts/nissan-trans-auto~31020-X2770.html 2) https://parts.nissanoflumberton.com/p/89600125/31020-X2770.html 3) https://www.ebay.com/itm/304642403069 Picture(s) 4) http://xenonzcar.com/s130/Transmissions.html ___________________________________________________________________________________________________________________________________________________________________ The vehicle options this part fits: Nissan 280ZX (S130) (1) Production Date: 12/1980- Fitting Vehicle Options: L28ET. AT ___________________________________________________________________________________________________________________________________________________________________ Product Specifications (1) Lookup Code 31020 Manufacturer Part Number 31020-X2770 Part Description Transmission-Assy-Auto Item Dimensions 33.7 x 17.3 x 15.1 inches Item Weight 123.90 Pounds Replaces 31020-X2778 ___________________________________________________________________________________________________________________________________________________________________ Product Comparison: L28E vs L28ET (4) ------------------------------------------------------------------------------ Engine model L28E L28ET ------------------------------------------------------------------------------ Automatic transmission model L3N71B 3N71B ------------------------------------------------------------------------------ Automatic transmission assembly Model code number X6703 X2770 ------------------------------------------------------------------------------ Stall torque ratio 2.0 : 1 2.0 : 1 ------------------------------------------------------------------------------ Transmission gear ratio 1 st 2.458 2.458 2nd 1.458 1.458 Top 1.000 1.000 ------------------------------------------------------------------------------ Oil Automatic transmission fluid "Dexron" type "Dexron" type ------------------------------------------------------------------------------ Oil capacity 6.1 liters 5.5 liters 6-1/2 US qt 5-7/8 US qt ------------------------------------------------------------------------------ Stall revolution RPM 2,000 - 2,300 2,400 - 2,700 ------------------------------------------------------------------------------ Control valve assembly Stamped mark on strainer MEM TRBK ------------------------------------------------------------------------------ Governor assembly Stamped mark on governor body M33 M33 ------------------------------------------------------------------------------ Stall Revolution RPM 2,000 - 2,300 2,400 - 2,700 ------------------------------------------------------------------------------ ___________________________________________________________________________________________________________________________________________________________________