Gable made three pictures with Spencer Tracy, which boosted Tracy's career and permanently cemented them in the public mind as a team.
San Francisco (1936), with Jeannette MacDonald, featured Tracy for only 17 minutes in an Oscar nominated portrayal of a Catholic priest who knocks Gable down in a boxing ring.
The film was a box office hit and remains the third highest-grossing film of Gable's career.
Their next film together was the Academy Award Nominated box office success, Test Pilot (1938) with Loy.
One of her seven pictures with Gable, in which he plays the lead, a test pilot, and Tracy is his sidekick mechanic.

For their final film, Boom Town (1940) Tracy gets a larger part than earlier, almost achieving parity with billing directly under Gable and above Claudette Colbert and Hedy Lamarr.
The picture, a lavish epic about two oil wildcatters who become partners then rivals, was a box office success earning $5 million.
They were off-screen friends and drinking buddies; Tracy was one of the few Hollywood industry luminaries who attended Lombard's private funeral.
After Boom Town no more Gable-Tracy partnerships were possible; Tracy's success led to a new contract and both stars had conflicting stipulations requiring top billing in MGM movie credits and on promotional posters.
Gable made three pictures with Spencer Tracy, which boosted Tracy's career and permanently cemented them in the public mind as a team. San Francisco (1936), with Jeannette MacDonald, featured Tracy for only 17 minutes in an Oscar nominated portrayal of a Catholic priest who knocks Gable down in a boxing ring. The film was a box office hit and remains the third highest-grossing film of Gable's career. Their next film together was the Academy Award Nominated box office success, Test Pilot (1938) with Loy. One of her seven pictures with Gable, in which he plays the lead, a test pilot, and Tracy is his sidekick mechanic.
For their final film, Boom Town (1940) Tracy gets a larger part than earlier, almost achieving parity with billing directly under Gable and above Claudette Colbert and Hedy Lamarr. The picture, a lavish epic about two oil wildcatters who become partners then rivals, was a box office success earning $5 million. They were off-screen friends and drinking buddies; Tracy was one of the few Hollywood industry luminaries who attended Lombard's private funeral. After Boom Town no more Gable-Tracy partnerships were possible; Tracy's success led to a new contract and both stars had conflicting stipulations requiring top billing in MGM movie credits and on promotional posters.
Clark Gable