Buck Harlan's shop sat on the edge of Holly Springs, Mississippi, a town so small that the Google Maps satellite image showed most of it as green, which was either the satellite being generous or Buck's land being tired. The shop itself was a cinderblock building with a corrugated metal roof that leaked every time it rained harder than a drizzle, and the leak was in the corner where Buck kept his toolbox, which meant that the toolbox was always damp, which meant that the wrenches were always rusting, which meant that Buck was always buying new wrenches.

He had been in the transmission business since 1981, when he was twenty-two and his father told him that every town needed a good transmission shop and if Holly Springs was too small to support one, then he would make it big enough. And for a while it worked. The shop grew. Buck hired two apprentices. He bought a lift and a transmission puller and a bench grinder and a set of bearing extractors and a torque wrench and a timing light and a compression tester and a whole wall of sockets from ten millimeter to two inches. He rebuilt transmissions for Chevys and Fords and Dodges and Toyotas and Hondas and Nissans and every other kind of vehicle that had a set of gears and a shaft and a clutch and a converter and a case full of fluid that broke every fifty thousand miles or so.

By 2015, he was the only transmission shop for a three-county radius. There were dealerships in Tupelo and Oxford and Memphis that installed replacement transmissions when theirs failed, but the replacements were sealed units -- you didn't repair them, you replaced them, which cost three times as much and produced three times as much waste, and Buck knew this and felt guilty about it every time he quoted a price that was cheaper than the dealership but still more than his costs.

The change came slowly. Not like a light switch -- more like a dimmer. First the dealerships stopped sending their overflow work to him. Then the insurance companies stopped recommending his shop to customers whose transmissions had failed. Then the mechanics who had come to him for training stopped showing up. Then the customers who had driven forty miles to his shop started going to the quick-lube place in Hernando because the quick-lube place offered a transmission flush for eighty-nine dollars and Buck charged a hundred and twenty for the same service and couldn't understand why people preferred the quick-lube place.

"They're not flushing your transmission," he told a customer named Wayne who had driven in from Verona. "They're pumping fresh fluid through the pan and calling it a day. Your transmission still has the same worn bearings and the same burnt clutch packs and the same degraded solenoid valves. The fresh fluid is going to last about six months and then your transmission is going to fail again and the quick-lube place is going to tell you to buy a new one."

"Well, what should I do?" Wayne asked.

"You should drive to Holly Springs and let me rebuild your transmission properly, which will cost you a hundred and twenty and last you another hundred thousand miles."

Wayne drove to the quick-lube place in Hernando.

Buck sat in his empty shop on Thursday afternoons -- which used to be the slow day, when the regulars brought in their trucks after taking them to work on Wednesday and before bringing them back on Friday morning -- and watched the road through the open bay door and counted the cars that passed. On a normal Thursday, he used to see maybe twenty vehicles. Now he saw twelve, and three of them were going the wrong way.

His son Calvin came by on Saturday, which was the only day Calvin had off from his job at the Amazon drone warehouse in Southaven. Calvin was forty-one, which was young to have a job unloading robots from a truck but old to still be asking his father for advice about anything. Calvin pulled into the shop in a Ford F-150 that was clean but old and looked at the empty bay and the damp toolbox and the wall of sockets that were rusting in the humidity.

"What's wrong with the lift?" Calvin asked.

"Nothing's wrong with the lift. It's working fine."

"Then why ain't there a transmission on it?"

"Because there ain't no transmissions to put on it."

Calvin nodded. He had heard. Everybody in three counties had heard. The last transmission manufacturer in the region had announced that it was automating its assembly lines, which meant that the human workers who had been assembling transmissions by hand for thirty years were now out of work, which meant that fewer transmissions were being broken by human error, which meant that fewer transmissions needed to be repaired by human hands, which meant that Buck Harlan, who had spent forty years learning how to listen to a transmission the way a doctor listens to a heartbeat, was obsolete.

"I got a job for you," Calvin said.

"I ain't looking for a job."

"It ain't at the transmission shop. It's at the drone warehouse. They need someone to help maintain the landing pads. It's not --" Calvin searched for the word. "--it's not nothing."

Buck looked at his son. "You're working at a drone warehouse."

Calvin's face changed in a way that Buck recognized. It was the look of a man who had been caught doing something that he was ashamed of but couldn't stop doing because shame doesn't pay the electric bill.

"Yeah," Calvin said. "I am."

"When did you --"

"Two years ago. I didn't tell you because I knew you'd say something, and I didn't want you to say something."

Buck went back to the toolbox and picked up a wrench that was rusted shut and tried to loosen it and couldn't and put it back and picked up another one and tried to loosen that one and couldn't and put it back and sat down on the stool he used as a work chair and looked at his hands. His hands were big and callused and stained with grease that had worked into his skin over forty years and would never come out no matter how much he scrubbed. His hands had rebuilt four hundred and seventy-three transmissions. He knew the number because he had written each one on a chart on the wall behind his desk, and he had reached four hundred and seventy-three in the spring of 2019 and hadn't written another one since because there hadn't been another one.

"I built four hundred and seventy-three transmissions," he said. It was not a question. It was a statement of fact, like saying I am sixty-eight years old or my shop is on County Road 17. But it was also a question, because the implication was: if I built four hundred and seventy-three transmissions and none of them are being built anymore, then what am I?

Calvin didn't answer. He had no answer. He stood in the doorway of the shop and looked at his father's hands and thought about the drone warehouse and the landing pads and the automated systems and the robots that landed and took off and delivered packages to people who lived in towns bigger than Holly Springs and wondered whether his father would rather die knowing that he had rebuilt four hundred and seventy-three transmissions than live knowing that he couldn't rebuild another one.

The answer came three weeks later, on a Wednesday in early spring, when Buck closed the shop for the last time. He didn't put a closed sign on the door. He just locked it and walked to his truck and drove home and sat in his living room and watched the news and didn't turn it off even though nothing on it was worth watching because the alternative was to sit in silence and listen to the house making the sounds that houses make when nobody is working in them, which is the sound of wood settling and pipes expanding and air moving through vents and nothing happening.

The next morning, Calvin came by with a box of things from the shop. A torque wrench. A socket set. A bearing puller. A transmission jack. A manual on automatic transmission overhaul, copyrighted 2008, its pages yellowed and dog-eared at the sections Buck had used most. Calvin set the box on the kitchen table and looked at his father, who was sitting at the table with a cup of coffee that had gone cold an hour ago.

"I ain't gonna need these," Buck said. "They're yours."

"Dad, I don't --"

"You learned from me. These are your tools now."

Calvin looked at the tools. They were good tools -- well-made, well-maintained, well-used. The kind of tools that tell you something about the person who owned them. The kind of tools that say: this person knew how to fix things by hand, and that skill mattered, even if the world has decided that it doesn't anymore.

"I'll keep them," Calvin said. "But I ain't gonna use them to rebuild transmissions."

"I know."

"I'm gonna use them to build something else."

Buck looked at his son. "Like what?"

"I ain't got it figured out yet. But I know how to fix things. And I know that there's still things in this world that need fixing. And I'm gonna find out what they are and I'm gonna fix them. And when I do, I'm gonna tell you about it."

Buck nodded. He drank his cold coffee. He listened to the house making its empty sounds. And for the first time in three months, the sounds didn't feel empty. They felt like the space between notes in a piece of music, which is not silence but possibility.

**TENSOR ENCODING (OTMES v2):** ``` Objective Tensor measurement system v2.0 ========================================== Work: The Last Gearbox Variant: V-05 Style: Southern-Gothic

Mathematical Encoding: - TI (Tragedy Index): 58.0 - M1 (Tragedy): 8.0 - M3 (Satire): 7.0 - M7 (Horror): 6.5 - M8 (Sci-Fi): 6.0 - M10 (Epic): 7.5 - N1 (Active): 0.65 - N2 (Passive): 0.35 - K1 (Sensibility): 0.50 - K2 (Rational): 0.50 - Theta: 160 degrees - V (Destruction): 0.65 - I (Irreversibility): 0.70 - C (Innocence): 0.75 - S (Scope): 0.60 - R (Redemption): 0.25

Vector Coordinate: (M1_Epic, N1_Active, K1_Sensibility) Style Angle: 160 degrees Frobenius Norm: 16.48 Similarity Class: Southern-Gothic