KAX 6x5.5 Wheel Spacers 1.5in for Silverado Sierra Tahoe

In this review the KAX 6x5.5 wheel spacers are evaluated for truck owners who need a reliable, bolt-on solution to correct wheel offset and improve track width. The biggest reason to buy is that these spacers are forged from aircraft quality 6061-T6 aluminum and include SGS certified 10.9 grade nuts, giving a combination of strength and fitment that reviewers repeatedly praised for eliminating rubbing and improving stance without vibration. For owners of compatible Silverados, Sierras, Tahoes and similar GM trucks looking for a durable spacer, these are a solid choice.

Key Features

• Hub centric design: The 78.1mm center bore with lip ensures the spacer seats on the hub for consistent alignment and reduced likelihood of runout.
• Forged material: Made from 6061-T6 aircraft grade aluminum for high strength and lighter weight compared with cast alternatives.
• Complete bolt-on kit: Each package includes 4 spacers plus SGS certified 10.9 class split nuts and an instruction manual for a straightforward installation.
• Vehicle compatibility: Specifically sized for 6x5.5 (6x139.7mm) bolt patterns and listed to fit many 1992-2022 GM 1500 series trucks and SUVs, reducing fitment guesswork for those models.
• Threaded studs: Uses M14x1.5 threaded studs and recommends 85-90 ft/lbs torque, a clear spec that installers can follow for secure mounting.

Who It's For

The KAX 1.5in wheel spacers are for truck and SUV owners who need additional track width or need to correct offset issues from aftermarket wheels. They work especially well for those who fit larger tires or want a wider stance on Silverado 1500, Sierra 1500, Tahoe, Yukon, Suburban 1500 and Escalade models where the 6x5.5 bolt pattern and 78.1mm hub bore match.

Owners who should look elsewhere include anyone with a different bolt pattern or insufficient fender clearance (less than 2 in between fender and tire). Also, if your factory wheel studs are longer than the spacer assembly allows, you may need a different spacer thickness or stud modifications.

Pros & Cons

Pros

• Solid build quality from forged 6061-T6 aluminum gives true durability under load.
• Hub centric 78.1mm bore and included 10.9 class nuts help maintain alignment and minimize vibration.
• Clear installation specs such as M14x1.5 studs and 85-90 ft/lbs torque make proper fitting straightforward for DIY installers.
• Multiple customer reports confirm correct fit and improved rear tire clearance on compatible models.

Cons

• Size and value impressions were mixed among buyers, so measure carefully to confirm the 1.5in thickness and fit your specific wheel/tire combination.
• May require trimming or stud length checks during installation if factory studs are longer than recommended.

Specifications

Bolt Pattern	6x5.5 in (6x139.7mm)
Thickness	1.5 in (38mm)
Stud Thread	M14x1.5
Center Bore	78.1mm hub bore with lip
Included Hardware	4 spacers, 10.9 class split nuts, instruction manual
Recommended Torque	85-90 ft/lbs
Material	Forged 6061-T6 aluminum

Our Verdict

The KAX 6x5.5 1.5in wheel spacers are a practical, well-made option for owners of compatible GM 1500 trucks and SUVs who need to widen track or correct wheel offset. Their forged construction, hub centric design and included high-strength nuts make them a dependable upgrade, provided buyers verify clearance and stud length before installation.

Frequently Asked Questions

Will these fit my Silverado 1500?
They fit Silverado 1500 models listed with a 6x5.5 bolt pattern and a 78.1mm hub bore; always verify your bolt pattern and hub bore before purchase.

Do the spacers cause vibration?
Customers report no vibration when installed correctly on compatible wheels, thanks in part to the hub centric 78.1mm bore and proper torque spec.

Is additional hardware included?
The kit includes 10.9 class split nuts and an instruction manual; no extra studs are required for the bolt-on installation.