【Spacers Parameter】- Vehicle = Wheels Bolt Pattern Must Be 8x170mm(8x6.69 ) | Threaded Studs/Nuts: M14x2 | Thickness: 2 inch(50.8mm)| Center Bore with NO lip:130mm | Recommended torque:85-90 ft/lbs | Package includes: 4 pcs spacers,glue 【Vehicle Application】- 8x170 wheel spacers fit for 1999-2003 F-250 Super Duty 7.3T 4WD, 1999-2003 F-350 Super Duty 7.3T 4WD, 1999-2009 F-250 Super Duty 5.4L 4WD, 2003-2007 F-250 Super Duty 6.0T 4WD, 2003-2007 F-350 Super Duty 6.0T 4WD, 1999-2009 F-250 Super Duty 6.8L 4WD, 1999-2009 F-250 Super Duty 5.4L RWD, 1999-2010 F-350 Super Duty 6.8L 4WD, 2008-2010 F-350 Super Duty 6.4T 4WD, 2008-2009 F-250 Super Duty 6.4T 4WD, 1999-2003 F-250 Super Duty 7.3T RWD, 1999-2003 F-350 Super Duty 7.3T RWD, 199 【Not Easy to Break】- PHILTOP 8x170 2 wheel spacers are made of lightweight anodized 6061-T6 aluminum by Forged Manufacturing Methods, compared with other Casting Spacers, high duty and more durable. The bolts(SGS Test Approved) are higher hardness and against rust. CNC automatic processing, enhance the hardness and corrosion resistance of the material.The above can effectively prevent bolt breakage 【Advantage】 - 2 inch wheel spacers provide extra width for the wheel track to bring an aggressive appearance, and with the improvement of traction, the vehicle's anti-roll performance and handling comfort have been greatly improved 【Please Note】: Better to use some glue on the spacers, alignment recommended after installation, re-torque the open-end lug nuts after some 50-100miles. NOTE: Please use the amazon comfirmed fit tool again to verify if it is compatible with your vehicle before purchasing the wheel spacers