These are a great solution for larger tires and factory ride or much need clearance for larger tires with our bolt in mid travel coilover or long Travel kits. Factory spindles are known for bending so this new design is much stronger than the factory units giving you strength needed for off road use. These spindles are CNC machined, fully fabricated, with an internally gusseted boxed design, 3/4" wider per side to correct spindle offset as well as more tire clearance with upper arms. Our new steering arm angle will relieve binding on the factory outer tie rods at droop allowing for more wheel travel. You also gain ground clearance with the added lift built into the spindle. We offer the spindle in two versions, one that incorporates the factory sway-bar mount for stock length upper and lower arms and our long-travel version that does not have the sway-bar mount, making it stronger. The stock brake lines for either version are too short. Fully fabricated (not cheap cast imports) CNC Machined 4 in Lift 3/4 in wider per side Includes longer length stainless/Kevlar front brake lines Clearance for larger tires Powder-coated finish Fits 6 lug version trucks only Made in the USA Fits 6 lug RWD model trucks only. When increasing tire size from stock, we recommend a zero offset wheel (4.50-4.75" backspacing) for added clearance. Stock wheels and tires fit correctly “as is". These are designed to replace the OEM stock parts, these will not work on drop-down bracket lift kits that replace the spindle/knuckle with a much taller version.