Wheel Stud - Rear

Procedure to replace a damaged or broken rear wheel stud on a 2009 Aston Martin DB9, including wheel removal, stud extraction, and installation of a new stud.

Warnings

Tools required

Parts

• Rear wheel stud × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Loosen rear wheel lug nuts 1/4 turn while vehicle is on the ground
3. Lift rear of vehicle using floor jack at designated jacking points
4. Support vehicle securely on jack stands placed under rear subframe or body lift points
5. Remove rear wheel completely and set aside

Procedure

1. 1

   Inspect the damaged wheel stud
   Examine the broken or damaged wheel stud to determine the extent of damage. If the stud is sheared flush with the hub flange, you may need to rotate the hub to access the stud from behind. The DB9 rear hub has a 5-bolt (5x114.3mm) wheel mounting pattern. The VH-platform DB9 uses wheel BOLTS threading into a threaded hub rather than press-in studs; confirm the exact fastener configuration against Aston Martin service documentation before proceeding, as this changes the entire repair approach. Note the position of the damaged fastener location relative to brake components for access planning. Note the position of the damaged stud relative to brake components for access planning. Note: The DB9 rear hub uses a 5-fastener (5x114.3mm) wheel mounting pattern; confirm whether the vehicle uses press-in studs or threaded bolt holes before proceeding.
2. 2

   Position the hub for stud removal access
   If necessary, ensure the driveline is disengaged (transaxle in neutral, parking brake released) to allow the hub to rotate freely; verify the hub turns by hand before proceeding. Rotate the hub assembly by hand until the damaged stud is positioned in an area with maximum clearance from the brake caliper, suspension arms, and other components. This will provide the best access for driving the stud out from the rear.
3. 3

   Remove the damaged wheel stud
   FIRST confirm the fastener type. If the vehicle uses press-in studs: from the rear side of the hub flange, use a ball peen hammer or brass drift to drive the damaged stud out toward the front of the vehicle, striking the rear of the stud firmly and evenly. Apply penetrating oil and allow 10-15 minutes to soak if seized. If the vehicle uses wheel BOLTS threading into the hub (typical for VH-platform DB9), there is no stud to drive out; damaged hub threads require thread repair (chase/insert) or hub replacement per Aston Martin documentation — do NOT attempt to drive anything out.ng hole.
4. 4

   Clean the stud mounting hole
   Once the old stud is removed, inspect the hole in the hub flange for damage, debris, or corrosion. Use a wire brush to clean the hole thoroughly, removing any rust, metal shavings, or contamination. Check that the hole is not elongated or cracked. If thread damage is present on adjacent studs, clean threads with a wire brush or run a thread chaser over them.
5. 5

   Prepare the new wheel stud
   Inspect the new wheel stud to ensure it matches the original specification. The DB9 wheel stud thread specification and press-fit knurled shoulder design must be verified against Aston Martin service documentation before installation. Many Aston Martin models use wheel bolts into threaded hubs rather than press-in studs — confirm the actual hub/fastener configuration for this vehicle. Install the new wheel fastener with clean threads per OEM requirements; do not apply anti-seize to wheel fastener threads unless specifically called for by Aston Martin, as it alters clamp load for a given torque value. Do not apply anti-seize to the knurled shoulder or shank. Note: The DB9 wheel fastener thread specification must be verified against OEM documentation, as the VH-platform DB9 typically uses wheel BOLTS threading into the hub rather than press-in studs.
6. 6

   Install the new wheel stud
   Insert the new wheel stud into the hub flange hole from the rear side, pushing it through until the knurled shoulder contacts the back of the flange. The stud must be drawn into place by pulling it from the front. If the vehicle uses a press-in stud design (verify first), thread 3-4 lug nuts onto the stud from the front side, using washers as spacers if needed. Tighten the lug nuts progressively in a star pattern to draw the stud into the hub until the knurled shoulder is fully seated and flush against the rear of the hub flange. You will feel resistance increase as the shoulder seats. Note: The VH-platform DB9 typically uses wheel BOLTS threading into the hub rather than press-in studs. Verify the exact fastener type and thread specification (commonly M14x1.5 for this platform, but unconfirmed) against Aston Martin service documentation before installation.
7. 7

   Verify stud installation
   Remove the lug nuts used for installation. Check that the new stud is fully seated with the knurled shoulder tight against the rear hub flange and the stud does not move or rotate. The threaded portion should protrude the same distance as the other studs. Verify that the stud is perpendicular to the hub face and not cocked at an angle.
8. 8

   Reinstall the wheel
   Place the wheel onto the hub, aligning the mounting holes with all studs including the newly installed one. Thread all lug nuts onto the studs by hand to ensure proper threading. Tighten wheel fasteners in a star pattern to approximately 50 ft-lb to seat the wheel, but do not torque to final specification yet. Note: Tighten wheel fasteners in a star pattern to a light seating torque, but do not torque to final specification yet.
9. 9

   Lower vehicle and perform final torque
   Lower the vehicle from jack stands until the tire contacts the ground but the suspension is not fully loaded. Remove jack stands and lower completely. With the vehicle on the ground, torque all rear wheel fasteners in a star pattern to the Aston Martin specification. Verify the exact value against factory documentation before applying torque, as published figures vary (do not rely on an unconfirmed estimate). Make at least two complete passes to ensure even torque distribution and proper wheel seating. Note: With the vehicle on the ground, torque all rear wheel fasteners in a star pattern to the OEM-specified value (verify exact torque against Aston Martin service documentation). Note: With the vehicle on the ground, torque all rear wheel bolts in a star pattern to the OEM-specified value, verifying the exact figure against Aston Martin service documentation before application.

Reassembly

1. Wheel installation mirrors removal: mount wheel, hand-tighten all lug nuts in star pattern, then torque to specification with vehicle on ground
2. After driving 50-100 miles, re-check lug nut torque to verify the new stud has not loosened

Verification

• Confirm the new wheel stud is fully seated and does not move or rotate by hand
• Verify all lug nuts thread smoothly onto studs without cross-threading
• Check that wheel sits flush against hub with no wobble or gap
• Test drive vehicle at low speed and verify no vibration or unusual noise from rear wheel
• Re-torque lug nuts after 50-100 miles of driving

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