WHATS INCLUDED: Front: x 2 MAZZULLA Offroad upper control arms / Part # MZS-C1-6 x 2 KING 2.5 Performance series shocks with remote resorvoirs designed for 1.5-3.5" lift / Part # 25001-302A-EXT2 Rear: x 2 KING 2.5 Performance series shocks with remote resorvoirs designed for 0-1.0" lift / Part # 25001-303A UCA Specs: These desert series billet machined uniball upper control arms are the ultimate performance, strength and durability gain for the front of your Chevy or GMC truck. Upper Control Arm Features: Manufactured in the USA Billet machined 6061 aluminum construction Pro Bearing Teflon lined 1.250" uniballs Pro Bearing Heim Joint inner pivots Stainless steel hardware 17-4 heat treated stainless steel pins and spacers Maximum alignment capability compared to stock Improved geometry for 0-3" lifted applications Silver, King Blue or Black Anodize finish Application Notes: Can be used on 2wd and 4wd suspension Requires factory service stop removal Recommended wheel backspace is 4.75" INSTALLATION GUIDE