Rear Coil Spring Correction Plates | Jeep Wrangler Jk/Wrangler Unlimited (07-18) | Run Your Rear Coils At The Right Angle; These Shims Correct The Rear Coil Angle Of A Lifted Jk By 10 Degrees, Thus Putting Them At The Optimum Angle For On And Off-Road Applications. A Bowed Coil Spring Can Rub Against The Track-Bar Bracket Or Other Components. Utilizing A Correction Shim Keeps The Coil Straight, Thus Prolonging The Life Of The Coil Itself As Well As Giving A More Pleasurable Driving Experience. Rough Country Now Offers These Shims Pre-Included In The Popular Jeep Jk 3.5In, 4In, 4In X-Series, And 6In X-Series Kits. These Correction Shims May Also Be Purchased Separately, And Are Easy To Install On Existing Equipment. | 2.5 | 4.25 | 13 | 1.00Lbs | Rough Country | 1113