Average Repair Cost
Use the $300-$6,500+ planning range to compare the total quote before separating diagnosis, parts, and labor.
2026 Repair Cost Guide
Gearbox repair cost depends on what the driver means by gearbox. In the US, many shops will call it a transmission; in other contexts it may refer to a manual gearbox, automatic transmission, transaxle, or transfer gearbox. The estimate should identify the unit, failure type, and whether repair or replacement is realistic.
Use this page when search terms, shop quotes, or vehicle documents say gearbox but the actual repair may be transmission or drivetrain work. Grinding gears, bearing noise, leaks, shift problems, and internal damage need different diagnostic paths. A useful quote explains whether the gearbox can be repaired in place or must be removed.
Use the $300-$6,500+ planning range to compare the total quote before separating diagnosis, parts, and labor.
The repair table below shows common quote lines so you can see whether the shop is pricing diagnosis, parts, labor, or related work.
Some estimates repair one failed part; others replace a larger assembly. Confirm which scope is included before approving work.
Cost table
These ranges are planning numbers for US drivers. Local labor rates, vehicle design, diagnosis, and parts availability can move the final repair quote above or below the table.
| Repair or quote line | Planning cost | How to read it |
|---|---|---|
| Gearbox leak or seal repair | $300-$1,200 | External seals, covers, or axle points. |
| Manual clutch-related repair | $800-$2,500 | May be confused with gearbox failure. |
| Gearbox bearing or synchro repair | $1,200-$3,500+ | Often requires removal and teardown. |
| Gearbox replacement or overhaul | $2,500-$6,500+ | Used, rebuilt, or remanufactured unit options. |
Cost drivers
The same search query can represent a quick inspection, a simple part replacement, or a major mechanical repair. Review these drivers before comparing quotes.
Gearbox, transmission, transaxle, differential, and transfer case can describe different units.
Manual gearbox faults often involve clutch, synchros, bearings, or gear damage; automatics use fluid and controls.
Internal gearbox work usually requires removal, teardown, and resealing.
Older, imported, performance, or luxury gearboxes may have limited parts availability.
Metal, burnt smell, or low fluid can indicate internal wear rather than a simple service.
Used, rebuilt, and remanufactured units carry different cost and warranty tradeoffs.
Symptoms
Match the estimate to symptoms, not just the part name. A code, light, sound, leak, smell, or driving condition helps a shop choose the right test path.
Manual gearbox grinding can involve clutch adjustment, synchros, fluid, or internal wear.
Whining changes with speed can point to bearings, gears, differential, or fluid level.
Hard shifts may come from clutch hydraulics, linkage, fluid, mounts, or internal gearbox issues.
Gear oil or transmission fluid leaks should be traced before low fluid causes internal damage.
A gearbox that will not stay in gear needs inspection before continued driving.
Loss of movement can be gearbox, clutch, axle, transfer case, or transmission control related.
Before approving work
A useful repair estimate should explain what was tested, what failed, what parts are included, and what is excluded. Use these checks to avoid comparing incomplete quotes.
Related estimates
Compare related repair costs and diagnostic guides before approving a mechanic quote.
FAQ