Front lower swing arm introduce

The function of the front wheel lower control arm is to support the vehicle body, fix and support the wheels. The front wheel lower control arm is usually made of steel material, and the use of this material's control arm is due to its high strength, elongation, excellent formability and flanging performance, good rust prevention performance, and effective buffering of vibration generated during car driving. The function of the car lower control arm is to cushion vibration during car driving, Among them, the shock absorber is used to cooperate with the swing arm and play a buffering role. 2. Material: The swing arm has a variety of materials, including aluminum alloy, cast iron, double-layer stamped parts, single-layer stamped parts, all of which have advantages and disadvantages. Stamped parts have better toughness, but their strength is not enough, and they are easy to break under impact. 3. Rust prevention: You can usually check whether the swing arm is rusted by yourself. The position of the swing arm is located in the component connecting the front tire and the center of the car, which is easy to check, If rust is found, it is necessary to promptly go to the 4S store for treatment to prevent accidents caused by breakage)

Steps to replace the car's lower control arm:

The steps to replace the car's lower swing arm: 1. Remove the screw of the welding part between the swing arm and the front axle. This screw can be removed together with a No. 18 socket and wrench, without any obstruction around it, making it easy to disassemble. Remove the fixing screw of the support rod, where there are two screws connected to the lower swing arm, just remove these two screws; 2. Remove the fixing screw of the steering knuckle. This screw is slightly harder than the first two. You can use a No. 16 wrench to match the No. 16 socket to remove the screw and screw. Remove the swing arm. After removing all screws, you can use a hammer to knock down the swing arm. Pay attention to safety when knocking on the door; 3. Install a new connecting screw between the rocker arm and the steering knuckle. The installation process is relatively simple, just reverse the disassembly process and tighten the screw according to the specified torque. When installing the screw, tap the rocker arm upwards until the fixing bolt can pass through smoothly. Install the support rod fixing screw. After connecting the rocker arm to the support rod, tighten the two screws. 4. Install the fixing screws of the welded parts. As long as the holes are aligned, the bolt can pass through smoothly, Tighten the nut installation. In summary, it is best to perform four-wheel alignment on the vehicle after replacing the swing arm to prevent it from going in the wrong direction

lacrosse introduce

The LaCrosse is a brand new mid to high end sedan launched by Shanghai General Motors on February 22, 2006. Its positioning is between the Regal and the Roewe, with main competitors such as the Teana and Accord. Shanghai General Motors launched the LaCrosse in order to replace the Regal and occupy an important position in the domestic mid to high end car market. The Buick LaCROSSE LaCrosse, a globally synchronized advanced platform of General Motors, combines domestic and foreign advantageous resources with independent research and development, Bringing cutting-edge technology, leading power, and first-class safety technology, we create a thrilling driving experience for you. Our luxurious equipment and exquisite craftsmanship provide a comfortable and luxurious ultimate riding experience. The LaCrosse is a pure American car, with its American prototype being the Buick LaCrosse. This car is a model that replaces the Century and Regal in the United States The LaCrosse, Pontiac GrandPrix, Chevrolet Antelope, and Monte Carlo share a chassis on the W platform. During the design process, General Motors did not put too much effort or manpower into it. Because in North America, its niche market has already been occupied by Chrysler's 300C and other Japanese cars, The purpose of General Motors launching the LaCrosse is to meet the needs of traditional American consumers who prefer "spacious cabins, comfortable driving, affordable prices, and an American brand." Shanghai General Motors brought the LaCrosse to China and renamed it the LaCrosse after making changes in the Pan Asian Center, entering the Chinese market as a mid to high end car