1989 Mercury Grand Marquis Performance Transmission Shift Kits

Your 1989 Mercury Grand Marquis might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Performance Transmission Shift Kits you desperately need.

We currently carry 1 Performance Transmission Shift Kits to choose from for your 1989 Mercury Grand Marquis, and our inventory prices range from as little as $71.99.

On top of low prices, Advance Auto Parts offers 1 different trusted brands of Performance Transmission Shift Kits for the 1989 Mercury Grand Marquis. We only sell parts from trusted brands like B & M so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Performance Transmission Shift Kits stock in-person!

Performance Transmission Shift Kits for Your 1989 Mercury Grand Marquis

B & M – Shift Improver Kit, 80-92 AOD Transmission (Part No.40263)

Shift Improver Kit, 80-92 AOD Transmission

from

$71.99
The B&M Shift Improver kit, is the easiest way to get the performance you want out of your transmission. A few simple modifications and your transmission will shift fast, firm and live longer.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
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