1959 Willys Universal Jeep Tires

A 1959 Willys Universal Jeep uses either 600-16 or 700-15 tires, and both are bias-ply fitments. The 600-16 size belongs to the Optional Tire version, while the Base model uses 700-15. Those are different sizes on different wheel diameters, so they should not be treated as interchangeable choices for the same setup.

The practical first step is confirming which sub-model you have and then verifying the wheel diameter on the Jeep itself. Many older Jeeps have seen wheel changes over the years, so matching the tire to the actual wheel is just as important as matching it to the year and model name.

The 1959 Willys Universal Jeep uses either a 16-inch rim with the 600-16 tire size or a 15-inch rim with the 700-15 tire size. Rim diameter is tied directly to the tire size, so the Jeep does not use one universal wheel diameter across the covered sub-models.

A buyer should verify the actual wheel on the vehicle before selecting tires, especially on a Jeep that may have been modified for farm, trail, or restoration use. Once the rim diameter is confirmed, the remaining choice becomes selecting the appropriate bias-ply tire style, tread pattern, and sidewall treatment.

No. The 1959 Willys Universal Jeep Base uses 700-15, while the Optional Tire version uses 600-16. Both are bias-ply sizes, but they belong to different wheel diameters and reflect different fitment paths within the same year and model family.

That difference matters because choosing by vehicle name alone can lead to the wrong tire. Before comparing brands or sidewall styles, identify the exact sub-model and confirm whether the Jeep is wearing 15-inch or 16-inch wheels, particularly if the vehicle has changed hands or has a long service history.

Start with the correct primary size for the Jeep’s sub-model and wheel diameter, because 600-16 and 700-15 are not the same fitment. From there, compare the tire’s intended character, whether that means a civilian-style bias-ply, a military NDT pattern, a truck tread, or a more restoration-oriented whitewall presentation.

Selection also comes down to how the Jeep will be used and how you want it to look. A trail, utility, parade, or restoration-focused Jeep may point toward very different tread and sidewall choices, so it helps to compare rim-width compatibility, load figures where stated, and overall appearance before deciding.

Sidewall choices for the 1959 Willys Universal Jeep include blackwall, wide whitewall, and double-whitewall, depending on tire size and series. Most military and utility-oriented patterns are blackwall, while several 600-16 and 700-15 classic bias-ply options are also offered with whitewall treatments for a more styled presentation.

The right sidewall depends on the look you want from the Jeep rather than a universal rule for every example. Blackwalls usually suit a work-oriented or military-inspired build, while whitewalls can support a more polished restoration approach. Tire size still comes first, since not every sidewall treatment appears in both fitments.

Brands available across the 1959 Willys Universal Jeep tire sizes include Firestone, BFGoodrich, Goodyear, STA, Avon, Coker Classic, Excelsior, Lester, Camac, and Ford Script. Brand availability varies by size, so the 600-16 fitment has a broader spread of choices than the 700-15 fitment.

Brand is only one part of the decision. It helps to compare each brand’s available series, sidewall styles, and tread type within the correct size, because a blackwall military NDT tire serves a different purpose than a wide whitewall classic bias-ply even when both fit the same Jeep configuration.

A period-style choice starts with the correct bias-ply size for the Jeep’s actual configuration: 600-16 for the Optional Tire version or 700-15 for the Base model. From there, the most suitable tire depends on whether the Jeep is being presented as a civilian utility vehicle, a military-inspired vehicle, or a more dressed restoration with whitewall styling.

Tread pattern and sidewall treatment shape the vehicle’s visual character as much as the size itself. Blackwall military and truck treads create a more rugged presentation, while wide whitewalls or double-whitewalls produce a more polished classic look. When exact originality matters, marque-specific historical references are worth checking before finalizing details.

On the 1959 Willys Universal Jeep, the primary fitments are bias-ply tires, and that construction plays a major role in preserving the vehicle’s traditional stance and visual character. Because the available choices remain within bias-ply construction, the appearance differences come more from tread style, section width, and sidewall treatment than from switching between bias-ply and radial designs.

That gives a restorer useful flexibility without leaving the period-style look behind. A military NDT, a truck tread, or a classic wide whitewall can make the same Jeep feel more utilitarian or more polished, so appearance goals should be set early before comparing brands and individual tire series.

Yes. Modifications such as aftermarket wheels, different wheel widths, suspension changes, altered ride height, or body clearance work can all affect tire fitment on a 1959 Willys Universal Jeep. That matters even with stock-style sizes, because this Jeep uses both 15-inch and 16-inch fitments depending on configuration.

A modified Jeep should be checked for actual wheel diameter, wheel width, steering clearance, and space at the fenders before choosing tires. Older utility vehicles are often changed over time, so the safest approach is to treat the vehicle in front of you as the final reference rather than assuming it still matches its original setup.

Before road use, inspect the wheels for damage or corrosion, confirm the tires match the wheel diameter, and make sure the beads seat properly. It is also worth checking valve stems, air pressure, lug hardware, and visible clearances at the springs, steering components, and body openings once the Jeep is back on the ground.

A short test drive should be followed by another look for rubbing, unusual pull, vibration, or signs of contact under steering movement. On a collector Jeep that may sit for long periods, continue checking pressure retention and sidewall condition regularly, since time and storage conditions can matter almost as much as mileage.

Collector tires on a 1959 Willys Universal Jeep should be maintained with regular pressure checks, visual inspections, and clean storage habits. Look for cracking, cuts, bulges, uneven wear, and slow air loss, and keep the Jeep away from prolonged sunlight, excess heat, moisture, and ozone sources when it is parked for extended periods.

Low annual mileage does not eliminate the need for inspection, especially on an older utility vehicle that may alternate between storage and road use. It also helps to monitor the wheel and suspension condition around the tire, because alignment issues, worn components, or long idle periods can affect how even a properly sized bias-ply tire performs.