Warner Gear Four and Five Speed Manual Transmissions

The manual transmission code, part number, and serial number, appears on a metal tag attached to an extension housing bolt on the left side (9 o'clock position).

Example Tag:

Customer P/N 14078525 WA2041 Source Code

Source P/N 13-52-062 21975 Sequential
Serial Number

Example:

W A 20 5 1
Shift
Source Code Month Day Year Code

W=Warner A=Jan. G=July 20=20th Day 5=1985 Shift
B=Feb. H=Aug. Produced
C=Mar. J=Sept.
D=Apr. K=Oct.
E=May L=Nov.
F=June M=Dec.