FORD <F> SHARES RISE ON HIGHER EARNING ESTIMATE Ford Motor Co's stock rose 1-1/4 to 82-1/4 after analyst Maryann Keller of Furman Selz Mager Dietz and Birney raised earnings estimates on the company, traders said. Keller said that she expects the company's 1987 earnings to rise to between 13.50-to-14 dlrs a share as compared to 12.32 dlrs a share earned last year. She said Ford's already good market share is expected to remain favorable and earnings from overseas are expected to improve. In addition, Keller said, the company is selling more of its expensive model cars, which are more profitable. The non-automotive operations, including Ford Motor Credit, are also expected to post improved earnings this year. Keller said she expects the company to split its stock and raise its dividend to at least three dlrs a share this year. She noted that Chrysler Corp's <C> announcement of a merger proposal for American Motors Corp <AMO> should have no short term effect on Ford but could cut into Ford's share of the truck market in the long term.