GMC OEM-Style Polished Directional Twin-Spoke 2-Piece Deep Lip Forged Wheels
GMC Terrain Fitment · 5-Lug
2016 GMC Terrain Wheels & Rims: Bolt Pattern, Offset & Sizes
Fitting GMC Terrain wheels? This page gives the 2016 GMC Terrain bolt pattern (5x120), centre bore, factory rim size and the offset range for aftermarket and forged GMC Terrain rims: the same spec sheet ANKUSI uses when machining forged wheels for this car.
Quick answer: The 2016 GMC Terrain uses a 5x120 bolt pattern with a 66.9 mm centre bore and M14x1.5 lug nuts. Factory wheels: 18x7.5J at ET46. For aftermarket wheels, 18x8.5J ET35 sits flush and 19x8.5J ET30 is the most aggressive fit.
Forged wheels for the 2016 GMC Terrain — drilled 5x120 with a 66.9 mm centre bore, built to the offset you choose. From $220 per wheel, made to order in about 25 days.
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GMC Terrain (2016): 5x120 bolt pattern, 66.9mm center bore. Factory wheels: 18x7.5J. Reference fitment ranges.
Bolt Pattern5x120
Wheel Bolt/NutM14x1.5 Nut
Center Bore66.9mm
Wheel Load Rating800–950 kg/wheel (Crossover segment reference)
Year2016
CategoryCrossover
✓ Data check: the bolt pattern and center bore on this page match an independent fitment reference. Last reviewed September 18, 2026. How we verify
Built to order by ANKUSI — IATF 16949 & ISO 9001 certified forged wheel manufacturer, TÜV/SFI/VIA compliant. See our factory & certifications →
Wheel Size & Offset at a Glance
| Configuration | Wheel Size & Offset |
|---|---|
| Factory (OE) | 18x7.5J at ET46 |
| Flush Fitment | 18x8.5J at ET35 offset |
| Maximum Aggressive | 19x8.5J at ET30 offset |
Forged wheels for the GMC TerrainMachined to the 5x120 bolt pattern and 66.9 mm bore · 14–24 inch · offset calculated for your car · 3D drawing before production
How to Read Wheel Offset & Measurements
Use these two references before ordering: the left diagram shows where each spec (PCD, center bore, offset, width and diameter) is measured on the wheel; the right diagram shows how positive, zero and negative offset shift the wheel face relative to the hub centerline.
ANKUSI Engineering Expert Advice
SUVs carry more curb weight higher off the ground, so wheel strength and rotational mass both matter more than on a comparable sedan — a heavier wheel amplifies body roll and slows steering response exactly where the platform is already working hardest. Forging keeps the wheel light without giving up the load rating the factory suspension geometry was tuned around.
The GMC Terrain runs a 5x120 bolt pattern, 66.9mm center bore, and a 18x7.5J at ET46, front and rear, wheel from the factory. Our Flush Fitment reference is 18x8.5J ET35, which tucks the tire under the fender lip on a stock-height GMC Terrain. Our Maximum Aggressive reference is 19x8.5J ET30 — beyond that offset, expect rubbing against the inner fender liner under compression without further trimming.
GMC Terrain OE Wheel Specs
The 2016 GMC Terrain (Crossover) uses a 5x120 bolt pattern with a 66.9mm center bore. Factory wheels are 18x7.5J at ET46.
Why the factory spec works for most owners:
- Supports the vehicle's curb weight and load capacity
- Preserves ground clearance for everyday and light off-road use
- Balances ride comfort with cargo and passenger stability
- Maintains clearance for the factory suspension travel and brake package
ANKUSI builds these wheels — we are the forging factory, not a reseller. For the GMC Terrain (2016) we drill the 5x120 pattern and cut the centre bore to 66.9mm on our own CNC line, so the wheel hub-centres on the car with no spacer rings, in whatever diameter, width and offset you specify.
Converting these ET figures to backspacing? Use the wheel offset and backspacing calculator.
The figures on this page are part of our open wheel fitment dataset — 10,093 vehicles, free to download, CC BY 4.0.
Flush Fitment
For a flush look with minimal rubbing, 18x8.5J ET35 is the recommended starting point on a stock or mildly lowered GMC Terrain.
Maximum Aggressive Fitment
19x8.5J ET30 is a more aggressive reference setup. Beyond this, expect rubbing under compression without fender rolling or camber correction.
Real-World Fitment Notes
Wheels: 1st gen uses 5x120 PCD (like BMW / Camaro). Chassis: Lowering springs. Tires: 235/55 R18.
5-Tier Configuration Options
A Factory-Style 18x7.5J ET46
Recommended setup: 18x7.5J ET46 | Economy impact: Negligible | Best for: Daily commuting, family use
Appearance: 7/10 | Comfort: 9.5/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,200-1,500 (wheels + tires + install)
B Comfortable Upgrade 18x8.0J ET41
Recommended setup: 18x8.0J ET41 | Economy impact: -2 to -4% | Best for: Daily / street
Appearance: 8/10 | Comfort: 9/10 | Install difficulty: ★☆☆☆☆
Estimated cost: $1,950-2,550 (wheels + tires + install)
C Balanced / Flush Fit 18x8.5J ET35
Recommended setup: 18x8.5J ET35 | Economy impact: -4 to -6% | Best for: Street
Appearance: 8.5/10 | Comfort: 8/10 | Install difficulty: ★★☆☆☆
Estimated cost: $2,600-3,400 (wheels + tires + install)
D Aggressive 19x8.5J ET33
Recommended setup: 19x8.5J ET33 | Economy impact: -6 to -9% | Best for: Show / occasional track
Appearance: 9/10 | Comfort: 6.5/10 | Install difficulty: ★★★☆☆
Estimated cost: $3,900-5,000 (wheels + tires + install)
E Max Aggressive 19x8.5J ET30
Recommended setup: 19x8.5J ET30 | Economy impact: -8 to -12% | Best for: Show only
Appearance: 9.5/10 | Comfort: 4/10 | Install difficulty: ★★★★☆
Estimated cost: $4,800-6,200+ (wheels + tires + install)
Performance Comparison Matrix
| Metric | Tier A | Tier B | Tier C | Tier D | Tier E |
|---|---|---|---|---|---|
| Wheel Spec | 18x7.5J ET46 | 18x8.0J ET41 | 18x8.5J ET35 | 19x8.5J ET33 | 19x8.5J ET30 |
| Economy Impact | Negligible | -2 to -4% | -4 to -6% | -6 to -9% | -8 to -12% |
| Appearance | 7/10 | 8/10 | 8.5/10 | 9/10 | 9.5/10 |
| Comfort | 9.5/10 | 9/10 | 8/10 | 6.5/10 | 4/10 |
| Install Difficulty | ★☆☆☆☆ | ★☆☆☆☆ | ★★☆☆☆ | ★★★☆☆ | ★★★★☆ |
| Cost Range | $1,200-1,500 | $1,950-2,550 | $2,600-3,400 | $3,900-5,000 | $4,800-6,200+ |
| Best For | Daily commuting, family use | Daily / street | Street | Show / occasional track | Show only |
Real-World Reference Cases
The examples below are compiled from typical ANKUSI customer configurations and are labeled as reference cases, not individually verified real-world builds.
Case 1: Daily Driver (Factory-Style)
Profile: Everyday driving, prioritizes comfort and low running cost.
Setup: 18x7.5J ET46
Cost: ~$620
Outcome: Minimal visual change, ride and fuel economy essentially unaffected.
Case 2: Balanced Enthusiast (Balanced / Flush Fit)
Profile: Wants a sportier stance without sacrificing daily usability.
Setup: 18x8.5J ET35
Cost: ~$3,000
Outcome: Noticeable visual upgrade, fuel economy drop within the expected range.
Case 3: Show Build (Max Aggressive)
Profile: Built primarily for shows or occasional track/show use.
Setup: 19x8.5J ET30
Cost: ~$5,500
Outcome: Maximum visual impact; daily comfort and fuel economy are heavily compromised, physical test fit required before production.
Decision Guide
1
What's your primary use? Daily commuting → Tier A/B. Weekend street driving → Tier B/C. Show or occasional track use → Tier D/E.
2
What's your budget? Under $800 → Tier A. $800-3,400 → Tier B/C. $3,400+ → Tier D/E.
3
How much does fuel economy matter? Very important → Tier A. Somewhat important → Tier B/C. Not a priority → Tier D/E.
4
Still unsure? Tier C (Balanced / Flush Fit) is the default choice for most GMC Terrain owners.
Offset & Backspacing Reference
Backspacing is calculated as wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance):
- OE: 18x7.5J ET46 → ~6.06″ backspacing
- Flush: 18x8.5J ET35 → ~6.13″ backspacing
- Max: 19x8.5J ET30 → ~5.93″ backspacing
A Note on Clearance
Final clearance depends on the exact tire model, suspension height, brake package, alignment and vehicle tolerances. A physical test fit is recommended before production.
Want to check a different width or offset before you order? Use our Offset & Backspacing Calculator to solve the numbers yourself, or looking for your exact GMC spec, or want a wheel built to a custom offset for your GMC Terrain? Contact ANKUSI with your bolt pattern and offset target and we will confirm the correct forged wheel spec for your build.
Custom Forged Wheels for the GMC Terrain (2016)
Everything above is reference data. If you want wheels actually built to it, that is what ANKUSI does: we are a forged wheel factory in Guangzhou, China, IATF 16949 and ISO 9001 certified, forging on our own 10,000-ton press and producing over 120,000 wheels a year. Forging blank, CNC machining, finishing, coating and inspection all happen in the same building — nothing is subcontracted and nothing is relabelled from another manufacturer.
Every set is cut to order, so the 5x120 pattern and the 66.9mm centre bore are machined for this car specifically rather than shimmed with adaptor rings. Diameter, width, offset, concavity, monoblock or multi-piece construction and the finish are all yours to choose — most GMC orders on this platform land somewhere between the 18x8.5J ET35 flush setup and the 19x8.5J ET30 aggressive setup referenced above.
Designs we already tool for the 5x120 pattern — each one is re-cut to your sizes and offsets:
GMC OEM-Style Polished Directional Twin-Spoke 2-Piece Deep Lip Forged Wheels – GMC Terrain Fitment (5-Lug)
GMC OEM-Style Polished Twin 5-Spoke 2-Piece Deep Lip Forged Wheels – GMC Terrain Fitment (5-Lug)
IM L7 / LS7 Forged Wheels – Black / Machined Directional Milled Machined Face
IM OEM-Style Gloss Black / Blue Lip 10 Y-Spoke Mesh Forged Wheels – IM L7 / LS7 Fitment (5-Lug)Frequently Asked Questions
What bolt pattern (PCD) does the GMC Terrain use?
The 2016 GMC Terrain uses a 5x120 bolt pattern.
How many lug bolts does the GMC Terrain use?
The GMC Terrain uses a 5-lug bolt pattern (5x120), so you need a 5-lug forged wheel to bolt straight on.
What is the center bore size on the GMC Terrain?
The GMC Terrain's center bore is 66.9mm. If an aftermarket wheel has a larger center bore than this, hub-centric rings are recommended so the wheel centers on the hub itself rather than relying on the lug bolts alone.
What size are the factory (stock) wheels on the GMC Terrain?
Factory wheels on the GMC Terrain are 18x7.5J at ET46.
What is the biggest wheel size I can fit on my GMC Terrain without rubbing?
The most aggressive fitment we recommend without fender work is 19x8.5J at ET30 offset. Going beyond this typically causes rubbing under compression unless you roll the fenders or add camber correction.
What does a flush wheel fitment look like on the GMC Terrain?
For a flush look with minimal to no rubbing, we recommend 18x8.5J at ET35 offset as a starting point on a stock or mildly lowered GMC Terrain.
Do I need wheel spacers for my GMC Terrain?
No. ANKUSI forges each wheel to your exact target offset, including the flush or max specs above, so you get the correct fitment without stacking spacers. Spacers are typically only used to push out an existing OE-offset wheel without replacing it, which isn't necessary when you're ordering a custom-offset forged wheel.
How do I calculate wheel backspacing for my GMC Terrain?
Backspacing (in inches) = wheel width (in) ÷ 2 + offset (mm) ÷ 25.4 + 0.5 (flange allowance). For example, the flush spec above works out to roughly 6.13" of backspacing.
What's the difference between wheel offset and backspacing?
Offset is the distance in millimeters from the wheel's true centerline to its mounting face (positive offset pulls the wheel in, negative pushes it out). Backspacing is the distance in inches from the mounting face to the back edge of the wheel barrel. They describe the same fitment from two different reference points, which is why ANKUSI lists both above — some shops and tuning guides quote offset, others quote backspacing.
Can I run staggered wheels (different sizes front and rear) on my GMC Terrain?
The GMC Terrain runs the same wheel size front and rear from the factory, so staggered fitment is not required. ANKUSI can still forge a staggered set (wider rear) on request if you want a more aggressive stance.
Vehicles With the Same Hub as the GMC Terrain (5x120, 66.9 mm Bore)
In our database, 161 other vehicle entries from 10 makes use exactly the same 5x120 bolt pattern and 66.9 mm center bore. Factory wheels from these cars bolt on and center on the hub without rings; offset and width still have to be checked.
5x120 is used by 10.3% of the vehicle pages in our English fitment guide (670 of 6,503); 24.2% of those also use a 66.9 mm center bore.
GMC Terrain: Specs by Model Year
Hub-Centric Rings for a 66.9 mm Center Bore
A wheel with a center bore larger than 66.9 mm needs a hub-centric ring. The most common combinations:
| Wheel bore | Ring size |
|---|---|
| 67.1 mm | 67.1 → 66.9 mm |
| 70.1 mm | 70.1 → 66.9 mm |
| 70.5 mm | 70.5 → 66.9 mm |
| 71.6 mm | 71.6 → 66.9 mm |
| 73.1 mm | 73.1 → 66.9 mm |
ANKUSI forged wheels are bored to exactly 66.9 mm for this vehicle, so no ring is needed.
Sources and Last Update
Data checked against: avtoreference.com.
This record is part of the open ANKUSI Wheel Fitment Dataset (DOI 10.5281/zenodo.23241521, CC BY 4.0).
Other cars on the same factory size: 18x7.5 wheels · 18 inch wheels.
Compiled by the ANKUSI Wheels engineering team, an IATF 16949 and ISO 9001 certified forged wheel factory in Guangzhou.
Forged Wheel Designs for the GMC Terrain
Every design below is forged to order, so it can be machined to the GMC Terrain's 5x120 bolt pattern and 66.9 mm center bore, with the width and offset calculated for your setup.
GMC OEM-Style Polished Twin 5-Spoke 2-Piece Deep Lip Forged Wheels
GMC Terrain Fitment · 5-Lug
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APEX-Style forged wheels featuring the EC-7-style gloss black / gunmetal / gray 7 Y-spoke design, forged to order at ANKUSI's Guangzhou plant. Bolt pattern, centre bore, diameter, width and offset are machined for your exact vehicle — this listing covers 5-lug applications.
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Bolt pattern and center bore on this page were cross-checked against at least two independent sources before publication. Last reviewed 2026-09-18. Spotted an error? Email info@ankusi.com and we will verify and correct it.