Complete system correction and re-calibration kit improves pressure control and shift quality. All new shift solenoids to ensure positive shifting. Upgraded actuator feed limit valve prevents missing shifts and premature transmission failure. Upgraded 34 element intermediate sprag increases holding capacity. EPC solenoid is tested separate from the transmission to confirm precise pressure control. Case connector is updated to the latest design on pre-1994 versions and a vehicle harness pigtail is provided to address connection issues with the early design. Updated force motor for improved pressure control. No walkout rear case bushing is installed addressing an OE flaw to prevent case and output shaft damage. Completely remanufactured and improved torque converter is tested for leaks lock-up concentricity and balance. Upgrades exceed OE requirements and eliminate the possibilities of front seal leaks, premature bushing wear, and vibration. All new bushings installed in key locations to improve internal fluid flow control and pressures. Tru-Flat stator qualification and machining process. Nationwide Coverage You are covered anywhere and everywhere in the continental United States. Instant Replacement A replacement transmission is sent to you as soon as your warranty claim is submitted. Labor Reimbursement If your transmission is professionally installed we cover $50 an hour to repair or replace it. $1000.00 Core Charge does apply and will be billed to your card if core is not available upon delivery. Shipping charges due to late core availability are the responsibility of the buyer. Core refunds will be issued with-in 10 business days of merchant notification upon receiving an acceptable core. Broken cases or catastrophic internal failure due to any reason aside from manufacturer defects will not be classified as acceptable cores. RETURNS Our refund policy is 30 Days. Unfortunately we can’t offer you a refund or exchange after this period. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days. A Re-manufactured 4L80E Transmission A properly Re-Manufactured transmission will have all the OE manufacturers specified updates and enhancements necessary to ensure the proper function and longevity of the transmission for years to come. Assembly should take place in a clean dust free environment, just as it was from the OE manufacturer. A Re-Manufactured transmission should at least have a 3-Year Warranty. Not all Re-Manufactured Transmissions are created equal. Component selection, manufacturing and testing methods can vary from company to company. $250.00 Flat Rate shipping