OVERVIEW
Original two-thread stud for the manual-transmission bevel box
N-908-329-03 is the Genuine VW/Audi double collared stud used at the assigned differential and bevel-box mounting positions on the listed Audi TT quattro manual-transmission applications.
The central hexagon and collars locate the original mounting arrangement, while the two threaded ends serve different mating connections. This number differs from similar studs with a shorter M10 end.
Technical details
- Complete factory number: N-908-329-03.
- Factory specification: M10 x 50 / M8 x 16.
- Design: double-ended threaded stud with central hexagon and collared bearing arrangement.
- Quantity supplied: one individual stud.
The factory designation identifies an M10 end with a 50 mm dimension and an M8 end with a 16 mm dimension. Match both ends and the complete number. Nuts, washers and neighboring carrier bolts are separate parts.
Common reasons to replace
- Threads on either end are stripped or crossed.
- The central hexagon is rounded or damaged.
- The stud is bent or its collars no longer seat correctly.
- Corrosion prevents correct engagement or tightening.
- Incorrect or missing hardware was identified during drivetrain service.
Inspect the carrier, mounting faces and both mating threads. Correct damaged receivers or cracked brackets before assembly. New hardware does not repair a damaged bevel-box housing or worn mounting component.
Vehicle fitment
Match the engine, manual transmission and PR code below. DSG and other gearbox versions can use different mounting studs.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi TT | 2004–2005 | 1.8L turbocharged gasoline I4; 225 hp | 8N Coupe or Roadster; quattro; 6-speed manual; PR G0L | Assigned differential/bevel-box mounting stud position only; M10 x 50 / M8 x 16. |
Installation guidance
Support the drivetrain as specified and follow the exact mounting procedure. Fit the correct end to its receiver, start the threads by hand and tighten the stud and associated nut to their separate specifications.
Verify collar seating, thread engagement and surrounding clearance. Replace other single-use hardware wherever the factory procedure requires it.
Ordering information
One individual genuine stud. Bevel box, carrier, nuts and washers are separate. Confirm VIN, gearbox code and required quantity.