2015 Chevrolet Suburban Lug Nut Torque & Bolt Specs

The 2015 Chevrolet Suburban lug nut torque is 140 ft-lbs, tightened with a 22mm socket on M14x1.5 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. The wheel bolt pattern is 6x139.7.

Lug nut torque: 140 ft-lbs · Socket size: 22mm · Thread: M14x1.5 · Bolt pattern: 6x139.7.

This page is the OEM-referenced fastener summary for the 2015 Chevrolet Suburban. 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.

GM lug-nut torque clusters around 140 ft-lbs (190 Nm) for half-ton Silverado/Sierra and 100 ft-lbs for passenger cars like Malibu, Impala, and Cruze. GM heavy-duty trucks (2500HD/3500HD) jump to 165 ft-lbs. Most GM passenger cars use a 19mm socket; trucks moved from 22mm to 22mm-with-deep-well in 2014. Watch for GM's flat-flange lug nut design on the Silverado — the standard cone-seat aftermarket lugs will not seat correctly.

Common fastener categories on the 2015 Chevrolet Suburban

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 2015 model-year work: This era introduced widespread torque-to-yield (TTY) bolts on head, main, and crank pulley fasteners. TTY bolts stretch permanently when torqued and must not be reused — the spec calls for a fresh bolt every time. Always verify TTY status against the FSM before 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 2015 Chevrolet Suburban?

The OEM-specified lug-nut torque for the 2015 Chevrolet Suburban is 140 ft-lbs, using a 22mm socket on M14x1.5 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 2015 Chevrolet Suburban lug nuts?

The 2015 Chevrolet Suburban uses a 22mm 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 2015 Chevrolet Suburban 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 Chevrolet Suburban years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 2015 Chevrolet Suburban oil drain plug torque & size

→ 2015 Chevrolet Suburban suspension & steering torque specs (control arm, ball joint, tie rod)

All 8 2015 Chevrolet Suburban fastener specs

Per-bolt torque, wrench size, and thread spec for the 2015 Chevrolet Suburban, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 2 of the 8 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Wheels — 2015 Chevrolet Suburban

Wheel and lug nut spec for the 2015 Chevrolet Suburban. Lug nut tightens to 140 ft-lbs, takes a 22mm driver, runs on M14x1.5 threads, located at the all six wheels.

Brakes — 2015 Chevrolet Suburban

Brake fasteners on the 2015 Chevrolet Suburban — caliper bracket, slide pins, and banjo bolt torque follow. The front brake caliper slide pin uses a 18mm drive on a M10x1.5 thread, torqued to 74 ft-lbs (100 Nm) at the front caliper slide pin. OEM-verified spec. At the front brake caliper bracket to knuckle, the front brake caliper bracket bolt torques to 170 ft-lbs (230 Nm) (21mm drive, M14x1.5 thread).

Engine — 2015 Chevrolet Suburban

Engine bolt-by-bolt torque for the 2015 Chevrolet Suburban, including the long block, valve covers, and intake. At the cylinder head, the spark plug torques to 11 ft-lbs (15 Nm) (5/8 in. (16mm) drive, M14x1.25 thread). Confirmed against manufacturer service literature. For the oil pan, plan for a 15mm tool on a M14x1.5 stud; final torque is 18 ft-lbs (oil drain plug).

Suspension — 2015 Chevrolet Suburban

Suspension and chassis fastener torque for the 2015 Chevrolet Suburban — strut, control arm, and sway bar values. For the front sway bar end link to bracket, plan for a 18mm tool on a M14x1.5 stud; final torque is 67 ft-lbs (sway bar end link nut). Front hub/bearing nut (4wd) tightens to 177 ft-lbs, takes a 36mm driver, runs on M28x1.5 threads, located at the front axle hub bearing nut.

Steering — 2015 Chevrolet Suburban

Steering linkage fasteners on the 2015 Chevrolet Suburban. Tie rod end nut tightens to 55 ft-lbs, takes a 21mm driver, runs on M14x1.5 threads, located at the outer tie rod end to steering knuckle.

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 2015 Chevrolet Suburban numbers above.

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