All Kits ship with brackets predrilled to the correct bolt hole size at no extra cost! This is the kit that has all the parts that we are always using in the shop for customers Single triangulated four links suspensions. This has all the parts that are made to stand up to the abuse that Rock Crawlers and Trail Rigs see and then some. The kit includes.1x Large Axle Truss1 x Axle Link Mount Pair 0 Deg1 x Truss Link Mount Brackets1 x Frame Link Mount1 x Adjustable Inner Frame Link Mount Pair 20 Deg4 x Chromoly 1 1/4"- 12 X 1" Heim RH4 x Chromoly 1 1/4"- 12 X 1" Heim LH8 x High Misalignment Spacer - 1" to 5/8" Stainless Steel (pair)4 x 1-1/4" - 12 Jam Nut RH4 x 1-1/4" - 12 Jam Nut LH2 x Tube Insert (1-1/4-12) 1 1/2" ID 2" OD Tube RH2 x Tube Insert (1-1/4-12) 1 1/2" ID 2" OD Tube LH2 x Tube Insert (1-1/4-12) 1 1/2" ID 1.75" OD Tube RH2 x Tube Insert (1-1/4-12) 1 1/2" ID 1.75" OD Tube LHThis is great for the do it yourself fabricators looking do their own 4 link system, and did we mention that the kit is 5% off of our regular great prices for the items individually! If for any reason you need to exchange any of the items in the kit just let us know and we will make a kit to fit your project!