6x5.5 to 6x135 Wheel Adapters for GMC Sierra 1500 | 1.5" | M14x1.5 | Set of 4 | Lug Centric
Lifetime warranty
Lifetime warranty
*USA Lifetime Warranty against all manufacturer defects!*
Return policy
Return policy
Returns & Refunds
Returns are accepted for 16 days following the date of purchase. Once that window closes, orders can no longer be returned or refunded.
- Approved returns are subject to a 30% restocking fee, plus the original outbound shipping cost. This is waived if the return is due to an error on our end (for example, an incorrect size was shipped).
- Return shipping is the customer's responsibility once the return has been approved.
- Items must be unused, unmounted, and in original condition to qualify.
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Cancelation
We ship most of our products within the next business day. If you need to cancel, please contact us within 12 hours of ordering to have your order cancelled.
Description
Description
Overview
6x5.5 to 6x135 wheel adapters for GMC Sierra 1500 — 1.5" thick, sold as a set of 4. Fit compatible Ford-pattern 6x135 wheels to a six-lug Sierra 1500 using the 6x139.7 mounting pattern. The dual-drilled hub face also accommodates qualifying 6x135 hubs.
Machined from forged 6061-T6 aluminum with a hard-anodized finish, these wheel adapters include pressed-in studs and mounting lug nuts. This lug-centric design centers through compatible fastener seats; the center opening provides hub clearance.
What's in the set
- 4 complete wheel adapters, all 1.5" thick
- Pressed-in M14x1.5 wheel studs
- 24 M14x1.5 mounting lug nuts
- Four wheel positions per set; mounting location must be verified for the vehicle
Specifications
| Vehicle bolt pattern | 6x5.5 (6x139.7) OR 6x135 — dual drilled |
|---|---|
| Wheel bolt pattern | 6x135 |
| Thickness | 1.5 inch (nominal 38 mm) per adapter |
| Quantity | 4 complete wheel adapters |
| Center bore | 108 mm |
| Wheel-centering lip | None — lug-centric mounting |
| Wheel stud thread | M14x1.5 |
| Mounting nut thread | M14x1.5 |
| Material | Forged 6061-T6 aluminum |
| Finish | Hard anodized |
| Centering design | Lug Centric |
Vehicle application guide
The applications below match the stated bolt-pattern and thread family. Confirm your actual hub diameter, hub protrusion, wheel center, fastener seats and clearance before ordering; modified hubs, replacement axles and aftermarket wheels can change fitment.
| Vehicle | Model years | Fitment notes |
|---|---|---|
| Chevrolet Silverado 1500 | 1999 and newer | 6-lug models only |
| GMC Sierra 1500 | 1999 and newer | 6-lug models only |
| Chevrolet Tahoe | 1995 and newer | 6-lug models only |
| Chevrolet Suburban 1500 | 2000 and newer | 6-lug models only |
| GMC Yukon / Yukon XL 1500 | 2000 and newer | 6-lug models only |
| GMC Yukon | 1992–1999 | Six-lug 4WD models only |
| Chevrolet / GMC Suburban K1500 | 1988–1999 | Six-lug 4WD models only |
| Cadillac Escalade / ESV / EXT | 1999 and newer | 6-lug models; model availability varies |
| Chevrolet Avalanche 1500 | 2002–2013 | Excludes 8-lug Avalanche 2500 |
| Chevrolet Astro / GMC Safari | 2003–2005 | 6-lug models only |
| Chevrolet Express 1500 / GMC Savana 1500 | 2003–2014 | 6-lug models only |
| Chevrolet / GMC K1500 | 1988–1998 | 6-lug 4WD applications |
| Chevrolet / GMC C2500 / K2500 | 1988–2000 | 6-lug light-duty applications only |
| Ford F-150 / Expedition | 2015 and newer | 6x135 hubs with M14x1.5 studs; same-pattern spacing |
| Ford F-150 Raptor | 2017 and newer | 6x135 hubs with M14x1.5 studs |
| Lincoln Navigator | 2015 and newer | 6x135 hubs with M14x1.5 studs |
Fitment exclusions & wheel requirements
- Wheel side accepts 6x135 wheels only. A 6x5.5 vehicle uses the conversion mounting holes; a 6x135 vehicle uses the same-pattern mounting holes.
- Not for 2004–2014 F-150 or 2003–2014 Expedition/Navigator with M14x2.0 vehicle studs. Not a universal fit for all six-lug trucks.
- The 108 mm opening is a clearance bore, not a centering lip. Use a wheel and lug-seat system approved for lug-centric mounting; factory hub-piloted wheels are not an automatic fit.
Thickness & clearance
Each 1.5" adapter moves its wheel outward by its own thickness. A pair adds twice that thickness to the track at that axle when used with the same wheels. Measure clearance at full steering lock and through suspension travel. A wider stance can reduce inner clearance problems but can also bring the tire closer to the fender.
The inch/mm sizes shown are the existing nominal product sizes. For precise offset calculations, subtract the measured spacer thickness in millimeters from the wheel offset. This product does not increase the vehicle, axle, wheel or tire load rating.
Installation information
- Professional installation is recommended. The hub, spacer/adapter and wheel must seat fully flush with no interference.
- Original studs or mounting nuts must not project into the wheel mounting pad. Check the position and depth of wheel-backside pockets; thinner spacers can require extra attention. Have a qualified installer assess any permitted modification.
- Use the included nuts to mount the part to compatible vehicle studs. Wheel-to-spacer lug nuts must separately match the installed studs, wheel seats and required thread engagement. Do not assume incompatible factory nuts can be reused.
- Follow the applicable spacer/adapter, vehicle and wheel manufacturer torque instructions. Recheck torque after the first 50–100 miles and follow the supplied installation instructions. Do not stack spacers or adapters.
Need a fitment check? Contact SET Group USA with your year, make, model, drivetrain, hub measurements, stud thread, wheel bolt pattern, wheel bore, width and offset.
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Forged aluminum
Lifetime warranty*
*Lifetime warranty against manufacturing defects, subject to SET Group USA warranty terms. Improper installation and misuse are excluded.
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