2008 Pontiac G5 Lug Nut Torque & Bolt Specs
The 2008 Pontiac G5 lug nut torque is 100 ft-lbs (140 Nm), tightened with a 19mm socket on M12x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass.
Lug nut torque: 100 ft-lbs (140 Nm) · Socket size: 19mm · Thread: M12x1.5.
This page is the OEM-referenced fastener summary for the 2008 Pontiac G5. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.
For the 2008 Pontiac G5, fasteners follow metric standards typical of mid-2000s Pontiac engineering. Always confirm spec against the factory service manual before tightening safety-critical fasteners (suspension, brake, steering, head bolts).
Common fastener categories on the 2008 Pontiac G5
- Wheel / lug nut torque and thread spec (covered above)
- Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
- Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
- Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
- Suspension control arm, sway bar, tie rod end and ball joint torque
- Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
- Differential cover bolts (RWD/4WD only) and transfer case fasteners
Repair guidance for this model year
For 2008 model-year work: Always use a calibrated torque wrench for safety-critical fasteners, and replace lock washers and crush washers on every reassembly.
Tools you will need
- Metric socket set (8mm-22mm), 6-point impact-rated
- Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
- Breaker bar (24" minimum) for initial loosening
- Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
- Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly
Frequently asked questions
What is the lug nut torque on a 2008 Pontiac G5?
The OEM-specified lug-nut torque for the 2008 Pontiac G5 is 100 ft-lbs (140 Nm), using a 19mm socket on M12x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.
What socket size do I need for the 2008 Pontiac G5 lug nuts?
The 2008 Pontiac G5 uses a 19mm socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.
Are the 2008 Pontiac G5 fasteners metric or SAE?
Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.
Other Pontiac G5 years
Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.
→ 2008 Pontiac G5 suspension & steering torque specs (control arm, ball joint, tie rod)
→ 2008 Pontiac G5 axle nut torque spec (CV axle & hub nut)
All 23 2008 Pontiac G5 fastener specs
Per-bolt torque, wrench size, and thread spec for the 2008 Pontiac G5, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 22 of the 23 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data.
Wheels — 2008 Pontiac G5
Wheel and lug nut spec for the 2008 Pontiac G5. The lug nut torques to 100 ft-lbs (140 Nm) (19mm drive, M12x1.5 thread). OEM-verified spec.
Brakes — 2008 Pontiac G5
Brake fasteners on the 2008 Pontiac G5 — caliper bracket, slide pins, and banjo bolt torque follow. plan for the right driver; final torque is 25 ft-lbs (34 Nm) (front brake caliper guide-pin bolt). Confirmed against manufacturer service literature. Front brake caliper bracket bolt tightens to 85 ft-lbs (115 Nm). This figure is independently verified against OEM service data.
Engine — 2008 Pontiac G5
Engine bolt-by-bolt torque for the 2008 Pontiac G5, including the long block, valve covers, and intake. Spark plug tightens to 15 ft-lbs (20 Nm). This figure is independently verified against OEM service data. The engine oil drain plug, torqued to 18 ft-lbs (25 Nm). OEM-verified spec.
Drivetrain — 2008 Pontiac G5
Drivetrain and driveline fasteners for the 2008 Pontiac G5 — axle, transmission, and differential plugs. The front axle/hub nut, torqued to 155 ft-lbs (210 Nm).
Suspension — 2008 Pontiac G5
Suspension and chassis fastener torque for the 2008 Pontiac G5 — strut, control arm, and sway bar values. The front wheel hub-to-knuckle bolts torques to 85 ft-lbs (115 Nm). Confirmed against manufacturer service literature. plan for the right driver; final torque is 15 ft-lbs (20 Nm) (strut-to-body upper mount nut). This figure is independently verified against OEM service data. Lower control arm-to-rear frame bolt tightens to 74 ft-lbs (100 Nm) + 180 deg. OEM-verified spec. The lower control arm-to-front frame bolt, torqued to 41 ft-lbs (55 Nm). Confirmed against manufacturer service literature. The stabilizer link-to-strut nut torques to 48 ft-lbs (65 Nm). This figure is independently verified against OEM service data. plan for the right driver; final torque is 52 ft-lbs (70 Nm) (strut shaft top nut). OEM-verified spec. Rear shock lower bolt tightens to 81 ft-lbs (110 Nm). Confirmed against manufacturer service literature. The rear axle bushing through bolts, torqued to 66 ft-lbs (90 Nm) + 60 deg. This figure is independently verified against OEM service data. The lower ball joint-to-knuckle nut torques to 37 ft-lbs then reverse 3/4 turn then 37 ft-lbs + 30 deg (50 Nm). OEM-verified spec. plan for the right driver; final torque is 50 ft-lbs (68 Nm) (lower ball joint-to-control arm bolts). Confirmed against manufacturer service literature. Stabilizer bar clamp bolt tightens to 37 ft-lbs (50 Nm). This figure is independently verified against OEM service data. The rear wheel bearing/hub nuts, torqued to 33 ft-lbs (45 Nm) + 30 deg. OEM-verified spec. The strut-to-knuckle bolt torques to 89 ft-lbs (120 Nm). Confirmed against manufacturer service literature.
Steering — 2008 Pontiac G5
Steering linkage fasteners on the 2008 Pontiac G5. plan for the right driver; final torque is 81 ft-lbs (110 Nm) (steering gear-to-frame bolt). This figure is independently verified against OEM service data. Outer tie rod end nut tightens to 18 ft-lbs (25 Nm) + 90 deg. OEM-verified spec.
Transmission — 2008 Pontiac G5
Transmission fasteners on the 2008 Pontiac G5. Automatic transaxle oil level control plug tightens to 106 lb-in (12 Nm), runs on 1/8-27 NPTF threads. OEM-verified spec. The manual transaxle fluid fill/level plug, torqued to 37 ft-lbs (50 Nm). Confirmed against manufacturer service literature.
New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2008 Pontiac G5 numbers above.
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