A History of the Triumph Stag
Collected from Various Sources
Market launch date in the UK was in April or May of 1970, now commonly referred to as the Mark I Stag. Mark I Stags had downward pointing gauge needles among other distinguishing features.
US-market Mark I Stags were introduced in September of 1971. The US version had lower-power, emission control, and side marker lights with a "Stag" badge under the rear side light.
Mark II Stags were introduced in February of 1973. Along with some cosmetic changes, gauges now pointed up, seats were changed, the air filter was different, compression was lowered, steering ratio was changed and a smaller steering wheel was fitted.
The Stag was available either with a 4-speed (with overdrive) manual or 3-speed automatic transmission. An "A" Type overdrive (0.82:1) was fitted up to chassis number LD21230 (LE20856 in the US). This was changed to a "J" Type overdrive (0.797:1) starting with chassis number LD21231 (LE20857 in the US). All US automatic transmission-equipped cars were fitted with a Borg-Warner Type 35 transmission. Other markets used the Borg-Warner Type 35 up to chassis number LD41993. Starting with chassis number LD41994, this was changed to a Borg-Warner Type 65 transmission.
Importation to the US market ended after 17 months in July of 1973. Production for other markets continued until June of 1977.
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