 The look of the GM C10 square body truck is classic, but what if you're wanting to combine the classic look with the stance and handling of a modern vehicle? I'm Dan Otti and welcome to another edition of Detroit Speed's Tech Talk. Speed's new front and rear speed kits for the 1973 to 87 GM square body truck is designed to lower your ride height as well as give you a more modern look and feel. Our front speed kit improves the performance and handling of your truck while lowering your ride height by up to four and a half inches. This kit will include a pair of two inch drop coil springs, a pair of replacement shocks, those are a pair of our DSC aluminum uprights with a forged steel steer arm and a modern hub pack. The DSC aluminum upright comes with a dual pattern of 5x5 or 5x4 3 quarter for your wheel selection. Now keep in mind you need to at least run a 17 inch wheel which requires a minimum of a 16 and a quarter inch inner wheel diameter. New front brakes are required with this kit and you can see a list of recommended brake packages in the description below. Now Detroit Speed does offer 13 inch dual pattern rotors part number 050403. Detroit Speed also offers the 100% bolt on Speedmax front suspension system. Check out our Speedmax Tech video here at this link to learn more. There are three variations available for your Detroit Speed's rear speed kit, speed kit one, two and three. Now speed kit one is going to replace your old drop hangers and shackles providing you with a three to four inch drop from the factory ride height. Our Lee Spring drop front hanger kit part number 040113 and drop shackle kit part number 040114 can be purchased individually from one another. Now using either of these kits will give you a one to two inch drop and ride height. Our Detroit Speed speed kit two features our Lee Spring flip kit with relocation shock brackets as well as our C-notch bracket kit. The flip kit axle pad and plate are manufactured from high quality quarter inch thick steel and powder coated black for durability. Detroit Speed has designed this kit with two Lee Spring pinhole locations in the axle pad to have adjustability in centering up your rear axle. The Lee Spring frame notch bracket kit is designed to give your rear axle more clearance under the frame rail allowing for a five to six inch drop. Our Detroit Speed speed kit three will combine all the components of speed kit one and two offering a rear drop of six to eight inches. If you have any questions on Detroit Speed's front and rear speed kits please call us at 704-662-3272 or send us an email at salesatdetroitspeed.com and don't forget to like and follow all of our social media as well as visit our website at detroitspeed.com. Thanks for watching our Detroit Speed Tech Talk and see you next time.