1999-06 Chevy GMC 1/2 Ton 2WD Truck Front Drop Coil Springs 1 GH9009 Chevrolet. Will lower the front 1. The coil springs were engineered for a truck with a V-8 Engine. If coils are installed on a 6 cylinder truc. K then the full drop will not be achieved and the rear will sit lower than the front. Worked perfectly on my 2006 regular cab. Literally brought it down exactly ONE INCH AND the truck was unlevel on one side. Not sure why but now it sets almost perfectly level (within 3/8). Please wait for us to send you a combined invoice before paying. We are Gearhead Enterprises – a national street rod parts supply company. Parts are added to our store weekly so check often for the latest deals! Plus, we have access to thousands of parts that are not listed. We get hundreds of emails daily so at times it may take us up to 72 hours to respond to your emails. Get Auctiva’s Listing Templates on your items with a few clicks. Attention Sellers – Get Templates Image Hosting, Scheduling at Auctiva. Com.