Can I put 373 gears in my 04 crown victoria interceptor with a stock rear end?

Asked by Mar 05, 2016 at 12:08 PM about the 2004 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

I've got an 04 crown victoria interceptor, 327 gears
currently installed, wondering if Id need to modify
the rear end to handle 373 gears?

2 Answers

236,785

Get the correct sized ring and pinion and no modification needed to the axle, maybe swap out the axle bearings while you have it is apart. Get some gear oil and friction modifier too. But the speedo will be off, not sure how to adjust that on your car. Have a trans shop help you with that.

Awesome thank you!

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