1987 Mercury Grand Marquis Tires

The 1987 Mercury Grand Marquis uses 205/75R15, 215/70R15, or 225/70R15 tires, depending on the exact sub-model. GS and LS models use 205/75R15 or 215/70R15, while the Grand Marquis with Police Package uses 225/70R15. All of these are radial sizes mounted on 15-inch wheels.

That means tire selection starts with identifying the car's specific trim and confirming what wheel and tire combination is actually on the vehicle today. A Grand Marquis that has been changed over to different wheels in the past should be checked carefully before ordering, since the correct factory-era size range and the current wheel setup may not still match.

Each tire size used on the 1987 Mercury Grand Marquis here is built for a 15-inch rim. That includes 205/75R15, 215/70R15, and 225/70R15, so the rim diameter remains consistent even though the section width and profile vary by application.

A shared 15-inch diameter does not mean every tire choice belongs on every wheel, because rim width can still differ from one product to another. Measuring the wheel or confirming the stamped wheel size is worthwhile before choosing between available tires, especially if the car has replacement wheels, a Police Package setup, or a long history of prior maintenance changes.

No. The 1987 Mercury Grand Marquis GS and LS share 205/75R15 and 215/70R15 radial fitments, while the Grand Marquis w/Police Pkg. uses 225/70R15. The difference is tied to the sub-model, not to a switch away from radial construction or a change from the 15-inch rim diameter.

That distinction matters because a tire that is correct for a GS or LS should not automatically be assumed correct for a Police Package car. Owners should verify the exact model designation and inspect the wheels already on the vehicle, particularly if the car has been restored, upgraded, or assembled from mixed parts over the years.

Start with the correct size for the exact sub-model, since the 1987 Mercury Grand Marquis does not use one universal fitment. From there, compare radial construction details such as rim-width requirements, maximum load figures where stated, and whether the tire's overall style matches the way the car will be used.

Appearance is also a major part of the decision on a Grand Marquis. Some owners want a formal whitewall look that suits a full-size Mercury sedan, while others prefer blackwall, redline, pinstripe, or raised white letter styling. Matching the tire to the car's trim level, wheel setup, and intended road use usually leads to a more satisfying choice than size alone.

Sidewall choices for 1987 Mercury Grand Marquis tires include blackwall, narrow whitewall, wide whitewall, redline, goldline, pin-white-stripe, and RWL raised white letter designs. The exact mix depends on tire size, so the sidewall styles available in 205/75R15 are not identical to the choices offered in 215/70R15 or 225/70R15.

That variety gives the Grand Marquis owner room to shape the car's presentation without leaving the correct size range. A whitewall can reinforce the formal luxury character of the car, while blackwall or RWL options create a more understated or assertive look. The key is choosing the sidewall treatment after the sub-model and size have already been confirmed.

Tires for the 1987 Mercury Grand Marquis are available from BFGoodrich, American Classic, Coker Classic, Tornel, Maxxis, Travelstar, Cooper, Dunlop, Avon, Michelin, Vredestein, and Goodyear, depending on the size. Some brands appear across more than one fitment, while others are tied to a narrower part of the size range.

Brand choice should be treated as one part of the decision rather than the first one. Once the correct size and wheel compatibility are settled, compare each brand's available tire series, sidewall presentation, and any stated load or rim-width details. That approach keeps the focus on fitment and intended character instead of choosing only by a familiar name.

A period-style 1987 Mercury Grand Marquis usually starts with the correct radial size for the specific sub-model, then narrows the choice by sidewall appearance. Whitewall tires often suit the formal, late-1980s full-size Mercury look, while blackwall, redline, or raised white letter options can shift the car toward a sportier or more personalized presentation.

For a stock-looking restoration, staying within the original size family matters more than chasing a dramatic appearance change. Owners seeking exact originality should compare their car against marque-specific references, original literature, or surviving examples, because a visually appropriate sidewall treatment is not automatically the same thing as the exact tire style delivered when the car was new.

On the 1987 Mercury Grand Marquis, construction is straightforward because the primary fitments are radial. The visible difference comes less from bias-ply versus radial questions and more from how that radial tire is styled, including whitewall width, blackwall presentation, redline treatment, pinstripe detail, or raised white lettering.

That means a restored Grand Marquis can look restrained and formal or much more assertive even when the tire size remains correct. Choosing a sidewall style that fits the car's trim, wheel covers, and intended overall theme will usually have a bigger impact than the construction label itself, since the period fitment here already centers on radial tires.

Yes. A 1987 Mercury Grand Marquis may have aftermarket wheels, altered suspension height, replacement springs, or prior brake and wheel changes that affect what tire size still works properly. Even though the original fitments all use 15-inch rims, wheel width and surrounding clearance can change the practical outcome.

A modified car should be checked at the wheel, not just by model name. Tire-to-fender clearance, steering travel, and suspension movement all matter, especially when moving between the GS or LS size range and the Police Package size. Confirming the actual wheel dimensions on the car helps prevent choosing a correct-on-paper tire that clashes with the current setup.

Before road use, inspect the wheels for damage, confirm the wheel size, and make sure the tires are mounted in the correct size for the sub-model. It is also wise to check for suspension wear, steering looseness, and any signs that the car has uneven ride height or clearance issues around the fenders and wheel openings.

A full-size sedan that has spent long periods parked can have age-related issues beyond the tires themselves. Looking over the valve stems, air pressure, alignment behavior, and any rubbing marks after a short test drive helps catch problems early. That kind of inspection is especially helpful on a collector-era Grand Marquis returning to regular road use.

Tires on a collector-era 1987 Mercury Grand Marquis should be kept properly inflated, inspected regularly for cracking, cuts, bulges, and unusual tread wear, and protected from long periods of sunlight, ozone, and moisture. A car that is driven only occasionally still needs routine pressure checks because low-use vehicles can lose air slowly over time.

Maintenance also means paying attention to how the car sits and drives between outings. Flat spotting, sidewall aging, and alignment-related wear can go unnoticed on a sedan that spends much of its life in storage. Rolling the car periodically, keeping the suspension in sound condition, and inspecting the tires before longer drives all help preserve safe, consistent road manners.