Original equipment 4 speed top loader transmission from a 1970 Mercury Cougar with engine code Q 428 Cobra Jet. Additionally 1971 Mercury Cougar with engine code J 429 Cobra Jet and engine code C 429 Cobra Jet. Transmission code 6 on the door tag, this would be a close ratio 4 speed transmission with a 2.32 ratio first gear. The tailshaft on this transmission has a different bolt pattern for the Hurst shifter plate.
Ford part # D0ZZ-7003-H. Casting number
RUG-AZ or RUG-AZ1.
*NOTE* Technically speaking, the 1971 429CJ would use casting number RUG-AZ1.
Percentages of Cougars equipped with a manual transmission by year
1967 = 18.5%
1968 = 13.2%
1969 = 10.5%
1970 = 7.8%
1971 = 2.8%
1972 = 1.5%
1973 = 0.7%
Total for 1967 to 1973 = 10.1% (Mustangs for the same time frame were 25.2%)
Percentage of each transmission;
X = 46.8%
W = 33.6%
U = 9.5%
1 = 7.2%
5 = 2.5%
6 = 0.5%