DETROIT- Ford Motor, General Motors and Chrysler all reported double-digit sales increases for November as the auto industry’s slow-motion recovery continued to gain traction.

Ford Motor Co. reported the largest increase of the Detroit Three on Wednesday — up 20 percent from November of last year. GM sales rose 11 percent and Chrysler showed a 17 percent increase.

Industry analysts say the numbers, combined with a strong October, show that consumers who have kept their jobs through the economic downturn are now feeling confident enough to replace older vehicles.

General Motors Co. said it sold just under 169,000 vehicles in November compared with 151,000 in the same month last year. Much of the growth was driven by crossover vehicles such as the Chevrolet Equinox and Cadillac SRX, which are like sport utility vehicles but are more efficient because they are built on car underpinnings.

Ford’s numbers were fueled by truck sales that went up 34 percent. The company sold just over 147,000 vehicles in November compared with 123,000 last year. The year-ago result includes figures for Volvo, which Ford sold earlier this year. Sales of the Fusion midsize sedan were up 28 percent, and Ford said it already has set a full-year sales record for the car.

Chrysler Group LLC reported its eighth-straight month of year-over-year sales increases, driven largely by the Jeep and Ram brands. The company said it sold just over 74,000 vehicles last month, up from almost 64,000 in November of last year, a month that froze consumers because of high unemployment.

The newly redesigned Jeep Grand Cherokee continued to sell well, more than tripling from November of last year.

At GM, Equinox sales were up more than 60 percent, while SRX sales rose nearly 36 percent. GM also saw more modest increases in passenger car and pickup truck sales. The Chevrolet Silverado pickup, traditionally GM’s top-seller, saw an increase of 16 percent.

Sales of GM’s four brands — Chevrolet, Buick, GMC and Cadillac — rose 21 percent compared with the same brands last November. GM got rid of Pontiac, Saturn, Hummer and Saab as part of its bankruptcy restructuring. Buick led all GM brands with a 36 percent sales jump.

Yingzi Su, GM’s senior economist, said the stable and increasing auto sales mean that consumers with jobs are starting to spend again, and that’s a good sign for the broader economic recovery.

Once businesses see increased consumer spending, they will be more willing to hire workers, a factor that has held back the economic recovery for months.

GM reported increased showroom traffic toward the end of the month, after its initial public stock offering on Nov. 18. The U.S. government, which spent $49.5 billion bailing GM out of its financial troubles last year, cut its stake in the company from 61 percent to about 33 percent by selling stock in the IPO. GM has maintained that government ownership has hurt its image with consumers and its sales.

Subaru of America also reported a big sales increase for November, up 22 percent as sales of most of its models grew.

Industry analysts J.D. Power and Associates are predicting that November U.S. sales overall will rise about 15 percent, while consumer website Edmunds.com predicted sales will increase 17 percent compared with November 2009.

The increased sales likely are due to a combination of rising confidence and pent-up demand as people replace vehicles they have kept for longer than normal during a severe auto industry downturn, said Bruce Clark, senior vice president of Moody’s Investors Service.

“There is a degree of pent-up demand that’s being met gradually by people who have kept jobs and can go out and afford to do such things,” Clark said. The sales are not as robust as historic highs from the early 2000s, but they are still a good sign for the industry, Clark said.

“It makes sense to me that we should have some modest growth of the type that we’re talking about right now,” he said.

Moody’s is predicting U.S. sales this year of 11.5 million cars and trucks, rising to around 13 million next year, still far short of the 2000 peak of 17 million. Sales so far this year are running at an annual rate that matches the Moody’s prediction. That’s less than the 12.5 million vehicles that are typically scrapped each year. Eventually, that means auto sales will have to increase as people replace their older cars, Clark said.

“I see an upward trajectory with less volatility than we’ve had over the last several months,” Clark said.

Americans’ confidence in the economy has been on the rise. The Conference Board, a private research group based in New York, said Tuesday that its Consumer Confidence Index rose to a five-month high in November. Consumer spending also was up. The confidence report came in the shadow of high unemployment and declining home values.