RockTrix for Precision European – 4pc 1.5″ 5×5 to 5×4.75 Wheel Adapters (CHANGES BOLT PATTERN) 1/2″ Studs – for GMC Jimmy Safari Savana Chevy Tahoe Astro Ford Thunderbird (5×127 to 5×120.65 Spacers)


WHEEL ADAPTERS (Changes Bolt Pattern) – Vehicle Must Be 5×5″ (5×127) AND Wheels Must Be 5×4.75″ (5×120.65).

Item Specifications:
Thickness: 1.5″ (38mm)
Vehicle Side Bolt Pattern: 5×5″ (5×127)
Wheel Side Bolt Pattern: 5×4.75″ (5×120.65)
Centerbore: 78.3mm
Stud/Nut Thread Pitch: 1/2″x20
Material: T6 Aerospace Grade Aluminum

Fitment Information:
Verify your Vehicle Bolt Pattern and Wheel Bolt Pattern match the specifications listed above. Also check your Vehicle’s Centerbore and Stud/Nut Thread Sizing also matches the specifications listed above.

IMPORTANT – Must check before purchasing
– SAFETY / INSTALL WARNING: Do NOT install wheel spacer if your wheel studs or lug nuts make contact with the back of your wheels.
– Wheel Stud Length: Your vehicle’s wheel studs need to be less than 1.5″ (38mm). If not, the back of your wheels need pockets long/wide enough for your studs.
– Fender Gap: Measure your wheel gap for clearance. You will need at least 1.5″ (38mm) of fender clearance to prevent the wheel/tire from hitting the fenderliner.
– If your vehicle hub is smaller than 78.3mm, we recommend purchasing hubcentric rings to reduce the chance of vibrations.
– If your vehicle doesn’t come with 1/2″x20 threaded studs, additional hardware will be required. Message us for help.
– No Returns or Exchanges once installed.

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10 in stock


  • [CHANGES BOLT PATTERN] These Adapter Spacers will only work for you if your vehicle is 5×5″ (5×127) bolt pattern AND your wheels are 5×4.75″ (5×120.65) bolt pattern. See description for other important information.
  • [APPLICATIONS] Buick, Chevrolet, Chevy, Chrysler, Ford, GMC, Lincoln, & Mercury vehicles with 5×5″ (5×127) Bolt Pattern and 1/2″x20 Threaded Studs
  • [SPECIFICATIONS] Pack of 4. 1.5″ (38mm) Thickness | 78.3mm Hub Bore | 1/2″x20 Threaded Studs/Nuts
  • [BOLT PATTERN INFORMATION] 5×5″ (5×127) Vehicle Bolt Pattern | 5×4.75″ (5×120.65) Wheel Bolt Pattern
  • [MANUFACTURING] CNC Machined to exact specifications from Aerospace Billet Aluminum. Undergoes anodizing process to prevent corrision. Includes pre-installed heat treated 10.9 grade studs.

WARNING: Professional installation is highly recommended. Misapplication and/or improper installation of wheel spacer/adapter combinations may cause lug nuts/bolts to break or loosen while driving, potentially causing accident and/or injury. Use on any vehicle or wheel sizes or types not recommended or specified is at the users sole risk. If your vehicle’s centerbore is smaller than 78.3mm, we highly recommend you purchase hubcentric rings to prevent steering wheel vibrations. If your vehicle does not have 1/2″x20 threaded studs, additional hardware will be required. Message us for help. ENSURE THAT YOUR WHEEL STUDS AND/OR LUG NUTS SECURING SPACER TO THE VEHICLE DOES NOT MAKE CONTACT WITH THE BACK OF THE WHEEL. Do not use impact wrenches/tools. Torque lug nuts / bolts to manufacturer specifications using a torque wrench. Users must check and retorque all lug nuts / bolts after 25-50 miles of driving. No returns or exchange once installed.

Part Number: 4x-38mm-5127>5120.65-78.3-1/2inStud
Manufacturer: Precision European Motorwerks
Quantity Included: 4

Additional information

Weight 18.16 lbs
Dimensions 8 × 8 × 8 in