Franklin Auto Service Center Franklin,Michigan Auto Repair Shop
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Family Owned & Operated For Over 30 Years

Complete Auto Repair

2 Years / 24,000 Miles Parts & Labor Warranty

6 Months No Interest Financing

We Service Foreign & Domestic Vehicles

Car Care Tips

Time for Differential Service at Franklin Auto Service?

Hello Franklin - let's talk differentials. If you have a rear-wheel drive vehicle, your differential is on the back axle. With front-wheel drive cars, the differential is up front. All-wheel drive and 4-wheel drive vehicles have three differentials - front, rear and in the middle. So you see, you've got a differential (or two or three) and it needs service now and then.

What does your vehicle differential do? Well, it compensates for the differences in speed between your outer and inner wheels in a turn. Using the dimensions of a typical car, let's compare the distance the wheels travel from the start of a turn through to the completion of the turn.

The inside wheel travels about 12.6 feet/3.8 meters. How much farther does the outside wheel travel? About 18.8 feet/5.7 meters – over 6 feet/1.9 meters more. This means the outer tire has to rotate 9 times in the same amount of time that the inner tire has to rotate only 6 times - so the outer tire has to spin faster in order to keep up. The differential makes this possible.

The gears in the differential are cooled and lubricated by differential fluid. It's this fluid that needs to be serviced. Small bits of the gears break off and are suspended in the differential fluid. The dirtier the fluid, the faster the gears wear.

So your Franklin Auto Service technician drains the old fluid out and replaces it with fresh fluid. Some differentials also need a special additive that is put in at this time.

So when should you have your vehicle differential serviced? Intervals vary from vehicle to vehicle – and may be as short as 15,000 miles/24,000 km – so check your vehicle owner's manual or ask us at Franklin Auto Service. If you frequently drive with heavy loads, tow a trailer or drive in hot Michigan conditions, you may need to change differential fluid more often. Servicing your differential on schedule at Franklin Auto Service can save a pricey replacement down the road.

Give us a call.

Franklin Auto Service
32725 Franklin Rd.
Franklin, Michigan 48025
248 626-2080

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