OEM wheel and tire fitment specs for the 1999 Chevrolet Suburban 1500, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 1999 Chevrolet Suburban 1500, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Center-bore records disagree: year-level hub 78.1 mm vs trim range 78.3–78.3 mm. Interchange below does not treat this as an unqualified match.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 1999 Chevrolet Suburban 1500. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 24 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Center-bore records disagree (target year-level hub 78.1 mm vs trim range 78.3–78.3 mm; donor year-level hub 78.1 mm vs trim range 78.3–78.3 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change 0.15 mm, inner change -12.85 mm. This uses aggregated width/offset ranges, not a specific wheel.
Recorded vehicle-side thread for the 1999 Chevrolet Suburban 1500 is M14x1.5. This donor year is recorded as M12x1.5. That is the vehicle stud/nut thread, not an intrinsic thread stamped on the wheel. Hardware must match this vehicle’s studs and the selected wheel’s seat and engagement. Existing hardware may be reusable if it already matches. Seat style is not in this dataset, so products are not a verified fit.
Dataset suggestionHub-centric rings ≈ 100.3 → 78.3 mm – not a verified installation requirement.
Hub-centric rings of about 100.3 → 78.3 mm mm may be relevant if the wheel bore is larger than the hub; clearance is not verified. Donor width/offset sits outside the known OEM envelope for this vehicle.
Chevrolet Suburban 1500 Years With Compatible Wheels
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 1999 Chevrolet Suburban 1500. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
1999 Chevrolet Suburban 1500
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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5x127
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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78.3 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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15"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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7.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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0 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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-
Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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Diameter
The wheel diameter for which the tire is designed to fit.
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-
Tire Pressure
The recommended air pressure for safe and efficient driving.
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Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 1999 Chevrolet Suburban 1500
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
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1999 Chevrolet Suburban 1500 Wheel Fitment Guide
Known OEM Fitment For 1999 Chevrolet Suburban 1500
The values below reflect the OEM baseline provided for this specific year, make, and model. If your vehicle has special packages or previous wheel changes, verify each item using the on-page calculator and your owner manual or OEM parts catalog before purchasing.
Bolt pattern
6x139.7 mm (6x5.5 in)
Center bore
78.1 mm
Thread size
M14 x 1.5
OEM rim diameter
15 in
OEM rim width
7.0 in
OEM wheel offset (ET)
0 mm
Backspacing
3.5 in
OEM tire size
235/75R15
Notes:
Some trucks of this era have been fitted with different wheels over time. Confirm markings cast or stamped on your current wheels and verify with measurements.
If your wheel markings or measurements differ from the backspacing shown, measure directly with a straightedge and ruler. Backspacing can vary by design and measurement method.
Lug nut seat type is not provided here and may vary by wheel. Visually confirm whether your wheel uses a 60-degree tapered, mag, or other seat before buying lug nuts.
How To Use The Wheel Interchange Calculator
The calculator compares donor wheels and tires to your 1999 Chevrolet Suburban 1500 and lets you test custom sizes. Follow these steps:
Set Installed on (your vehicle) to 1999 Chevrolet Suburban 1500 on wheelinterchange.com.
Choose a donor vehicle or pick Custom wheel size to enter a rim diameter, width, and offset you want to try.
Enter a Custom tire size if you plan to change tires. When you change rim diameter, the tool updates tire diameter in the comparison so you can keep overall diameter close to stock.
Review key outputs:
Outer poke change and inner clearance to suspension and liners.
Brake and hub clearance versus your 78.1 mm hub and your brake calipers.
Overall tire diameter difference compared to the OEM 235/75R15, which is about 28.9 inches. Keep within about 3 percent to limit speedometer error and clearance issues.
Use the checklist below to validate bolt pattern, center bore, thread size, and lug seat type before purchase.
Fitment Checklist Before You Buy
Bolt pattern must be 6x139.7.
Center bore must be 78.1 mm or larger. If larger, use hub-centric rings sized to 78.1 mm at the hub side.
Thread size must match M14 x 1.5. Confirm lug nut seat type matches the wheel.
Offset and backspacing must clear suspension, steering, and fenders. Verify with the calculator and a physical test fit when possible.
Brake caliper clearance. Spokes and barrel must clear your calipers. Test fit a bare wheel before mounting tires.
Load rating. Wheels and tires must meet or exceed the Suburban 1500’s axle and GVWR requirements. Check your door jamb tire label and owner manual.
Tire overall diameter. Aim to stay close to about 28.9 inches to reduce speedometer error and rubbing. Verify in the calculator.
Stud engagement. Target at least a stud diameter of full thread engagement on each lug (about 14 mm), unless your OEM spec differs.
Plus Sizing And Common Upgrades
Start from the OEM tire diameter of about 28.9 inches (from 235/75R15) and use the calculator to test sizes. The examples below are for comparison in the tool only. They are not guaranteed to fit your specific truck without checking clearance, load index, and wheel specs.
16 inch ideas to try in the calculator:
245/70R16 is about 29.5 inches. Often close, but confirm inner and outer clearance.
235/70R16 is about 28.95 inches. Very close to stock diameter.
17 inch ideas to try in the calculator:
255/60R17 is about 29.0 inches. Close to stock diameter.
245/65R17 is about 29.5 inches. Check for fender and liner clearance on turns.
Larger options like 265/70R16 or 265/65R17 increase diameter significantly. These may require suspension lift, trimming, or different offsets. Always verify with the calculator and a test fit.
If you change wheel width or offset from the OEM 15x7 ET 0, closely watch inner clearance to control arms and sway bar, and outer poke relative to the fender. Small offset changes can make a big difference in rubbing.
Installation Tips
Dry-fit first. Mount a bare wheel to check hub fit, caliper clearance, and stud engagement before mounting tires.
Clean the hub face and the wheel mounting pad until free of rust and debris so the wheel sits flush. Do not grind the hub.
Hub-centric rings: If the aftermarket wheel’s bore is larger than 78.1 mm, use rings sized to 78.1 mm on the hub side and your wheel’s bore on the wheel side. Never attempt to enlarge a wheel’s center bore at home.
Lug nuts: Match seat type to the wheel and thread to M14 x 1.5. Tighten by hand first, then torque in a star pattern with a calibrated torque wrench. Do not rely on an impact gun for final torque.
Re-torque after 50 to 100 miles of driving.
Tires: Match or exceed OEM load index and speed rating shown on the door jamb label. Verify adequate clearance at full lock and over bumps.
What is the bolt pattern on the 1999 Chevrolet Suburban 1500?
6x139.7 mm. Both the donor wheel and your Suburban must share this pattern.
What center bore do I need?
78.1 mm at the hub. Wheels with a larger bore can be used with hub-centric rings. Wheels with a smaller bore will not seat on the hub.
What is the factory wheel offset?
The provided OEM offset is 0 mm. Verify markings on your current wheels and validate clearance with the calculator, as some trucks may have different wheels installed.
Will wheels from another 6x139.7 vehicle fit?
Possibly, but do not assume. You still must match center bore, offset/backspacing, load rating, and lug seat type, and verify brake and suspension clearance using the calculator and a test fit.
What tire diameter should I target to keep my speedometer close?
The OEM 235/75R15 is about 28.9 inches in diameter. Try to stay within about 3 percent of this. Enter candidate sizes in the calculator to see the exact difference.
What lug nut torque should I use?
Torque specification can vary by trim and wheel. Check your owner manual, the driver door jamb, or a GM service manual for the exact spec. Always use a calibrated torque wrench.
Do I need spacers?
Only if required to clear suspension or brakes after careful measurement. Use high-quality hub-centric spacers with appropriate hardware and ensure sufficient thread engagement. Check local regulations and re-torque frequently.
Why does my backspacing measurement differ from the value listed?
Backspacing depends on how the wheel is measured and the exact wheel model. If your wheel is stamped differently or your direct measurement disagrees, trust the verified measurement and confirm clearance with the calculator.
Use the Wheel Interchange calculator on wheelinterchange.com to validate every change before you buy. When in doubt, confirm against OEM documentation or a GM dealer parts counter for your exact VIN.
Methodology and sources
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
Bolt pattern / PCD
Center bore direction (donor wheel bore must not be smaller than the hub)
Wheel diameter, width, and offset against known OEM ranges
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
