By Fernando Ketter


The differential is an important but often-overlooked component of SUVs, front-wheel-drive trucks, and cars. Located in the rear of the undercarriage, the differential makes up for the difference in distance traveled by the inner and outer wheels when turning corners. The outside wheels cover slightly more territory and rotate a little faster than the inside wheels. To maintain balance when turning, ring and pinion gears shift power from the driveshaft to the wheel axles. Learn when to replace rear differential fluid through auto repair North Center Chicago.

The differential oil is important in keeping all the gears lubricated and working properly to reduce wear and tear. Vehicles would be severely damaged without the differential.

Regularly changing differential oil is just as important as replacing engine oil, but most people skip this maintenance step because the differential is virtually hidden and many drivers don't know what purpose it serves. Vehicle owners should enlist the services of a professional auto repair technician for this task, as it can be more complicated than it seems.

Changing this oil can be messy and usually, the gasket needs to be replaced. Also the parts in the differential need to be wiped down to eliminate any old oil residue so it does not mix with the new oil. The vehicle must also be lifted in order to change the differential oil and should not be attempted by someone other than a qualified professional mechanic.

Several factors can indicate the need for new differential fluid. Auto repair technicians recommend changing it every 30,000 to 60,000 miles. Consult your owner's manual for more specifics. If you haul heavy loads, or the back of your truck becomes submerged, such as when you're launching a boat, oil may need to be replaced more often.

If you start to hear roaring sounds coming from your vehicle and they are loud, this could be a sign that your differential fluid is getting low and that the gears may be grinding. Also, when you are having your vehicle serviced, your auto repair technician may notice that your differential fluid may need replacing.




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