A ground-level view of fallen red leaves on the asphalt. A black sedan is parked below a tree in the distance.

Driveline parts transfer torque in order for power to reach the road. The system sends engine output from the transmission toward the wheels through the driveshaft, universal joints, differential, and transfer case. Each component manages movement and angle changes as torque direction shifts. By establishing a seasonal maintenance schedule for the driveline, you'll be able to keep the vehicle in great condition.

Spring: Inspect the U-Joints

Fresh spring driving exposes noises winter road grime hid. Inspect the universal joints (U-joints) after months of moisture and salt exposure. A dry joint can click or clunk as torque loads the driveshaft. If you notice a dry joint, check whether it has a grease fitting and apply the manufacturer-recommended lubricant. However, lubrication will not repair damaged bearings or a loose cap.

If there's a loose or worn cap, vibrations will break down the bearings and seals. Replace the U-joint if it shows excessive play, rust, cracked seals, or persistent noise, and confirm that the driveshaft is properly aligned before putting the car back on the road.

Summer: Check the Transmission Cooling

Hot weather forces transmission fluid to carry heat away from moving parts with less margin. Check cooler lines, fittings, and connections for cracks, corrosion, or leaks. Then, tighten or replace damaged components.

Dark fluid or a burnt odor can signal excessive heat and the need for prompt service. Therefore, you’ll want to add checking the fluid level, color, and smell to your summer maintenance list.

Fall: Service the Transfer Case

Transfer case care starts in autumn because winter is a strenuous season. The cold weather and increased demand on the tires demand more from the chain, bearings, and gears. Therefore, inspecting the transfer case and replacing worn fluid in the fall prepares these parts for cold-weather driving.

Winter: Check the Tires

Winter driving already increases the demands on joints, mounts, and bearings, so tire-related strain accelerates existing wear. Cold temperatures reduce tire pressure, and uneven pressure forces the driveline to function harder as it transfers power to the wheels. On all-wheel-drive and four-wheel-drive vehicles, mismatched tire sizes or tread depths create differences in rolling diameter. Keeping the tires evenly matched helps the driveline distribute torque smoothly.

Get Ready for the Season Ahead

As you plan seasonal maintenance for drivelines, keep these tasks in mind. When that time of year approaches, Transparts Warehouse will have the components to get your car back into shape. As an automatic transmission parts supplier, we have transfer cases, U-joints, and more for a variety of vehicle makes and models. Our high-quality shop will ensure you receive quality parts when you need them.