John's 4X4 Center
6367 Arapahoe Rd, Boulder, CO 80303 303.449.2640

Simple Answers from John's 4X4 Center for Boulder: Differential Service

Last Updated: May 04, 2021

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Question:
What is a differential and why do Boulder drivers need to have it serviced?

John's 4X4 Center Answer:
First of all – your vehicle does have a differential. If it's a rear wheel drive, your differential is on the back. If it's front wheel drive, your differential is built into your transaxle (transmission). Boulder drivers with all wheel drive or four wheel drive will have differentials front and rear and maybe one in between.

When you are steering through a turn at an intersection in Boulder, the wheels on the outside of the vehicle have to spin faster than the inside wheels because they have to travel a slightly longer distant through the curve. The differential compensates for these speed differences between the wheels.

Because it is part of the equipment that transfers engine power to the wheels, the differential is working pretty hard. Differential fluid – a special heavy-duty oil – cools, lubricates and protects the differential. It needs to be replaced on a schedule to remove metal shavings and other contaminants. Note: if you have a front wheel drive vehicle, replacing your transmission fluid takes care of your differential service needs.

Differentials have become increasingly sophisticated for Boulder drivers. Rather than the simple mechanical devices of yesteryear, they are more complicated and may actually be part of the computer controlled vehicle stability system. This means they are more taxed, so it pays for Boulder drivers to have them serviced on schedule at John's 4X4 Center in Boulder to avoid premature wear. Talk to your friendly and knowledgeable pros at John's 4X4 Center.

Give us a call.

John's 4X4 Center
6367 Arapahoe Rd
Boulder, CO 80303
303.449.2640

At John's 4X4 Center we install quality NAPA replacement parts.