LIFETIME WARRANTY This Allison 1000 valve body is a direct replacement for 1999-2010 GM trucks equipped with an Allison 1000 automatic transmission. It is available in both 6- and 7-solenoid configurations with either 1 tube or 2 tubes, totaling 4 different versions/variations. We carry every version available, and when you purchase from this listing, we will send you the correct version for your specific vehicle. Backed by a lifetime warranty for peace of mind! Upgrade your transmission with our high-quality, budget-friendly valve bodies?all without the high cost of full re-manufacturing. Get a great product at an unbeatable price! Check Our Warranty / Returns Policy Page Before Ordering Fit For The Following Models Chevrolet Silverado Kodiak/ GMC Topkick Sierra, Hummer H1, Chevrolet B-Series Do Not Forget To Tell Us Which Version / Variation You Want/Need! We Will Call the # Listed On Your Tracking Information You Put During Checkout to Verify! Fit For the Following Models: Allison 1000 Transmission Each valve body Is updated with top-quality OEM parts and is completely, cleaned, and fully tested to match OE specification and performance. There Are 4 Different Versions Of This Unit. We Carry All Of Them!