Consider Jim Frost.

After working as a salaried employee for GM for 26 years, he—along with his pension and retiree health care obligations—were spun off as Delphi in 1999. Five years later, at age 50, he retired.

Then, in 2005, Delphi filed for bankruptcy. The Troy, Michigan-based auto parts maker expected to emerge stronger a couple years later, but that has not happened. Now it faces the possibility of liquidation as its biggest customer, GM, contemplates bankruptcy itself.

Delphi faces a deadline Friday, April 17, to outline an agreement detailing the kind of financial support it can expect to get from GM, which accounted for 31 percent of Delphi’s total sales in 2008.

The kind of deal that emerges could determine the ability of Delphi to operate and meet its financial obligations. If a deal is not reached, Delphi could face liquidation. Its benefit plans for all retirees would terminate and, most likely, be taken over by the federal Pension Benefit Guaranty Corp., which would reduce considerably the payout each retiree receives.

Already, the benefits Delphi promised its retirees have begun to evaporate.

Beginning this month, Frost and the 15,000 other salaried retirees had their health care and life insurance benefits terminated. Union workers, with the strength of a bargaining agreement, have so far been spared.

Last fall, a bankruptcy judge approved a deal that would have GM assume more liability for funding the pension of Delphi’s hourly workers, making it easier, in theory, for those workers to have their pension funded.

Delphi salaried retirees had no such luck, and their pensions remain 50 percent underfunded. GM said in its restructuring plan, however, that the company would not fund either the hourly or salaried Delphi retirees’ pensions, making it likely that the government would take over the pensions.

“We’re kind of like on the forefront,” Frost said. “If GM goes into bankruptcy, chances are our pensions will go too.”

Bob Stevenson, a pension attorney at Stevenson Keppelman Associates in Ann Arbor, Michigan, said unsecured creditors such as Delphi salaried retirees would be less likely to receive funding should GM file for bankruptcy, since they are a smaller group of workers than those at GM.

“There might be a greater effort to prop up the existing GM plan and not have it terminate in bankruptcy, whereas it might be more affordable for a Delphi plan to terminate in bankruptcy,” he said.

“Our goal,” Delphi spokesman Lindsey Williams said, “is to devise a workable solution to our pension funding issues. What the resolutions are has yet to be determined.”

A spokesman for the PBGC declined to comment.

There is, however, a silver lining for Delphi salaried retirees.

Delphi this month reached a deal with salaried retirees to invest $8.75 million to help pay for health care costs for retirees. That money includes a half-million dollars to help the retirees establish a health care trust known as a voluntary employee beneficiary association, or VEBA.

Should the pensions be turned over to the government, the VEBA would allow workers to take advantage of a health care tax credit that’s part of the federal stimulus package.

For Delphi retirees such as Milton Beach, a 55-year-old whose individual health insurance costs increased this month to $630 from $67, the subsidy would help him pay his medical bills. The subsidy runs out at the end of next year.

“All in all, the only way that people would benefit from the VEBA is if, in fact, the pension goes over to the government,” Beach said.

That is likely to happen, and if it does, another nail will be hammered into the coffin of defined-benefit packages, Stevenson said.

“The shortcomings of our employer-financed pension and welfare system are now being highlighted and everybody’s freaking out,” he said. “But we’ve seen this coming for decades.”