8 Lug Wheel Spacers

Silverado 2500 1999–2010, Sierra 2500HD 1999–2010, Suburban 2500 1992–2013 and single-rear-wheel Express 3500 1996–2023 wheel spacers: 8x165.1 (8x6.5"), 14x1.5 thread

8x165.1 with a 14x1.5 thread and a 116.6mm to 116.7mm hub: Silverado 2500 1999–2010, single-rear-wheel Silverado 3500 2001–2010, Silverado 1500HD 2001–2006, Suburban 2500 1992–2013, Avalanche 2500 2002–2006, C/K 2500 HD and single-rear-wheel C/K 3500 1988–2000 and single-rear-wheel Express 3500 1996–2023 (front hub 116.7mm; one source lists a larger rear hub pilot on these vans and their GMC twins, so measure the rear hub before ordering a rear pair). The GMC Sierra 2500HD 1999–2010, single-rear-wheel Sierra 3500HD 2001–2010 and K2500 (4WD) 1988–2000 use the same pattern and thread on a 117mm hub, and the GMC Yukon XL 2500 2000–2013 uses them with a 116.7mm hub. Fit the 8x6.5" bolt-on pair with 14x1.5 studs (125.6mm center bore, 1" to 3"), which clears these hubs and centers on the studs. The single-rear-wheel GMC Savana 3500 1996–2023 (front hub 116.7mm; one source lists a larger rear hub pilot, so measure the rear hub before ordering a rear pair) uses the same pattern and thread. For 8 lug conversions to a different pattern, see wheel adapters.

The single-rear-wheel Chevy G30 1985–1996 has eight 9/16"-18 studs, but its bolt circle and hub are not confirmed by an outside source, so measure both before choosing the 8x6.5" pair with 9/16" studs. The NV1500, NV2500 and NV3500 2012–2021 are 8x165.1 with a 14x1.5 thread and take the 8x6.5" bolt-on pair with 14x1.5 studs (125.6mm center bore, 1" to 3"); their hub diameter is not confirmed (outside sources give 117mm or 121mm), so measure it first. An 8x6.5" pair with 1/2" studs (125.6mm center bore, 1.5" or 2") is also offered for trucks whose studs carry that thread.

Ram 2500 1994–2026 and single-rear-wheel Ram 3500 1994–2026 wheel spacers: 8x165.1 (8x6.5"), 121.3mm hub

The Ram 2500 1994–2011 and single-rear-wheel Ram 3500 1994–2011 use 8x165.1 with a 9/16"-18 thread and a 121.3mm hub: fit the 8x6.5" pair with 9/16" studs (125.6mm center bore, 1" to 3") or the 8x6.5" hub centric pair with 9/16" studs (121.2mm bore, 2"), whose listing excludes the rear axle of 4WD trucks and any locking hub. The Ram 2500 2012–2026 and single-rear-wheel Ram 3500 2012–2026 moved to 14x1.5 studs on the same pattern and hub: fit the 8x6.5" pair with 14x1.5 studs (125.6mm center bore, 1" to 3"). The single-rear-wheel Ram Van 3500 1999–2003 is 8x165.1 with a 120.9mm hub; its stud thread is not confirmed by an outside source for the 3500 itself, so check the thread and then take the 8x6.5" pair with matching studs, which clears that hub.

Silverado 2500HD 2011–2022, single rear wheel Silverado 3500HD 2011–2022 and Sierra 2500HD 2011–2022 wheel spacers: 8x180, 14x1.5 thread, 124.1mm hub

8x180 with a 14x1.5 thread and a 124.1mm hub: Silverado 2500HD and 3500HD single rear wheel 2011–2022 and the GMC Sierra 2500HD 2011–2022. Fit the 8x180 bolt-on pair (125.6mm center bore, 14x1.5 studs, 1.5" or 2"), which clears the hub and centers on the studs. Model years 2023–2026 are not yet confirmed by an outside source for all of these trucks.

Ford F-250 Super Duty 1999–2025, single-rear-wheel F-350 Super Duty 1999–2025 and Excursion 2000–2002 wheel spacers: 8x170, 124.9mm hub

The F-250 Super Duty and single-rear-wheel F-350 Super Duty 1999–2002 and Excursion 2000–2002 use 8x170 with a 14x2.0 thread and a 124.9mm hub. The F-250 Super Duty and single-rear-wheel F-350 Super Duty 2003–2025 use 8x170 with a 14x1.5 thread on the same hub (2026 is not yet confirmed by an outside source). Sources disagree on the exact thread changeover, so on a 2002, 2003 or 2004 Super Duty check the stud thread (14x2.0 or 14x1.5) before ordering. The 8x170 hub centric pairs are axle-specific: the front pair (125.1mm bore) goes on the front axle and the rear pair (125.3mm bore) on the rear, in 14x2.0 for 1999–2002 and 14x1.5 for the F-250 Super Duty and single-rear-wheel F-350 Super Duty 2003–2025, all 2" thick. The 1999–2002 front pair may not fit the rear axle without machining, so order the pair for each axle. For other thicknesses, the 8x170 bolt-on pairs (125.6mm center bore, 1.5" to 3") come in 14x2.0 and 14x1.5.

8 lug slip-on rings: 7/32", 1/4" and 1/2"

The 1/4" and 1/2" slip-on rings are drilled for 8x165.1, 8x170 and 8x180; the 7/32" ring is drilled for 8x165.1 and 8x170 only. They are not hub centric, so check that the ring's center opening clears your hub, and check that your studs keep full thread engagement at the thickness you choose: never shorten the studs on a slip-on; keep the thread engagement required by the vehicle, wheel and fastener manufacturers, fit suitable longer studs if they fall short, and check that closed-end lug nuts do not bottom out. See universal multi-fit wheel spacers.

How to choose an 8 lug spacer: slip-on or bolt-on, thread, hub bore and thickness

Slip-on spacers slide over existing wheel studs like a thick washer, ideal for thin adjustments. Bolt-on spacers bolt directly to factory studs using separate hardware and feature their own integrated studs to mount the wheel, ideal for wider setups. Hub centric is an attribute of both types: the 8x170 axle pairs and the 121.2mm 8x6.5" pair are bored to the hub, so the hub, not the studs, centers them.

• Thread: a bolt-on pair's studs must carry your truck's thread: 14x1.5, 14x2.0, 9/16"-18 or 1/2"-20 on the 8 lug pairs here. On a hub with wheel studs, lug nuts in your vehicle's stud thread and the pair's required seat clamp the pair to the hub (your own nuts only if they meet both); on a hub with lug bolts, the hub-side bolts are bought separately in your truck's thread and the pair's required seat, because bolt-on spacers do not include lug bolts. The wheel then mounts on the pair's studs with lug nuts that match both the pair's stud thread and your wheels' seat (check whether the listing includes nuts).
• Hub bore: a hub centric pair's bore matches the hub; a lug centric pair's 125.6mm center bore only has to clear it. If your truck is not named above, measure the hub, or measure your bolt pattern if you are unsure of it.
• Axle: the 8x170 hub centric pairs are sold per axle: the front hub centric pair goes on the front axle and the rear hub centric pair on the rear axle, and the 1999–2002 front pair can need machining to fit a rear axle. The 121.2mm 8x6.5" hub centric pair is not for the rear axle of 4WD trucks or any locking hub.
• Thickness available: bolt-on 1" to 3" depending on the pair; slip-on rings 7/32", 1/4" and 1/2". Start with the thinnest that clears; on a thin bolt-on pair whose listing says so, factory studs that stand proud of its face and stop the wheel seating flush need shortening; never shorten the studs on a slip-on.
• Torque: torque to your truck maker's specification and check the nuts again after the first 50 to 100 miles.

Common questions

Which 8 lug spacers fit a Silverado 2500? Silverado 2500 1999–2010: the 8x6.5" pair with 14x1.5 studs. Silverado 2500HD 2011–2022: the 8x180 pair.

Which spacers fit a Ram 2500 or single-rear-wheel 3500? Ram 2500 1994–2011 and single-rear-wheel Ram 3500 1994–2011: the 8x6.5" pair with 9/16" studs, or the 121.2mm hub centric 9/16" pair (not on the rear of a 4WD or on locking hubs). 2012–2026 single rear wheel: the 8x6.5" pair with 14x1.5 studs.

Which spacers fit an F-250 Super Duty or single-rear-wheel F-350 Super Duty? 1999–2002: the 8x170 hub centric rear pair and front pair with 14x2.0 studs (one per axle; the front pair may need machining to fit the rear), or the 8x170 bolt-on pair with 14x2.0 studs. F-250 Super Duty 2003–2025 and single-rear-wheel F-350 Super Duty 2003–2025: the same pairs with 14x1.5 studs. On a 2002, 2003 or 2004 truck, check the stud thread first: sources disagree on the changeover.

Do 8 lug bolt-on spacers include lug nuts? Each listing says what it includes. On a studded hub the pair fastens with lug nuts in your truck's stud thread and the pair's required seat (your own nuts only if they meet both); the wheel then mounts on the pair's studs with lug nuts that match both the pair's stud thread and your wheels' seat (check whether the listing includes nuts).

More wheel spacers

Browse all wheel spacers, bolt-on wheel spacers and hub centric bolt-on wheel spacers, or by make: Chevy, Ford, Dodge and Ram and Nissan wheel spacers. Other lug counts: 6 lug wheel spacers.