Does your car have a jerk? Or a delay in shifting? Why did the gearbox start hesitating when it was working normally? The question that is always repeated to us: Is the problem with the entire gearbox? Or does it have another cause? In many Yukon, Denali, and Expedition cars, the jerk or shifting delay is due to an internal fault in the gearbox, low oil pressure, or problems with the valve body or programming. Installing a used gearbox without inspection often leads you back to the same problem after a while. Inside the workshop, we start with a complete diagnosis, test drive the car, computer scan, and confirm the cause of the fault before any installation. Then, the gearbox is installed inside the workshop, with an oil change, and performance is checked before and after operation to ensure the smoothness of the shifts. After confirming the solution, we will provide you with the full cost, including disassembly and reassembly depending on the situation, with no surprises. 6-month warranty on the gearbox, with inspection before and after installation. Our goal is to fix the problem from its roots, not just replace a part. If the problem is not resolved due to the gearbox, you are not obligated to pay. #Yukon #Denali #Expedition #Gearbox #GMC #Yukon #Denali #Expedition Sierra Denali Yukon Explorer Expedition Contact via WhatsApp or call