Car is front wheel drive, has a viscous coupling to "kick " rear wheel in on slippy surfaces, never use car off road, so want to limit darg from all the extra bearings, and remove said bits. Will it make a difference to fuel consumption? Currently get about 40mpg, but drive a lot of miles, want to make it better.
The rear axles are independant.
Why keep a car with a feature you don't need? Look up the mpg on some other makes/models that fulfill your needs or take your eye, then shop around for one.
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