1. Aluminum Construction, will not flex! 2. All hardware for a quick installation. 3. Quality Anodized Finish to proof rust and corrosion Fitment Type:Direct Replacement Placement on Vehicle:Front Fitment:Compatible with for LS1 LS2 LS3 LS6 Truck/SUV LS engines Application: Belt Tensioner Not Included, You Need Tensioner Part (#38163) Belt Not Included, You Need Belt Part(#K061037) Note: 1. AC Compressor and Tensioner NOT Included. 2. Requires use of the 4 inch clutch, will NOT work with 5 inch. Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The color of accessories is random and cannot be specified. The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:Black Material:aluminum Package Contents: 1 * LS R4 High Mount AC Bracket kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.