De Soto LS 1 Tires

De Soto LS 1 uses two listed tire sizes for 1958: 800-14 and 850-14. Both sizes are numeric bias-ply sizes built for 14-inch rims. The 800-14 products are listed for 14-inch wheels with rim widths generally from 5.00 to 6.00 inches, while the 850-14 products are listed for 14-inch wheels with rim widths generally from 5.50 to 6.00 inches.

That means the main fitment question is not wheel diameter, but which width the specific De Soto LS 1 was set up to use. Check the size on the tire being replaced, measure the wheel width if needed, and compare against factory literature or a marque reference if the car has been restored or modified over time.

An 800-14 on a De Soto LS 1 is a numeric bias-ply size. The 800 portion indicates an approximate 8.00-inch nominal section width, and the 14 indicates the rim diameter in inches. For the available De Soto LS 1 products in this size, the tire is intended for a 14-inch rim and commonly fits wheel widths from 5.00 to 6.00 inches.

Modern buyers sometimes expect a more detailed metric code, but late-1950s American fitments often used this simpler numeric convention. On a De Soto LS 1, 800-14 should be chosen only when it matches the car’s actual wheel and its intended configuration, because the same 1958 model group also appears with the wider 850-14 size.

A 1958 De Soto LS 1 can show both 800-14 and 850-14 because more than one factory-style configuration falls under the same model grouping. Both sizes use the same 14-inch rim diameter and the same bias-ply construction type, so the difference is not a wheel-diameter change or a radial-versus-bias split. It is a fitment split within the model year.

That makes the specific body style or trim configuration important when selecting tires for a 1958 De Soto LS 1. If the car has changed hands several times or has had wheel swaps during restoration, verify the tire size currently on the car and compare it to original references before settling on either the narrower 800-14 or wider 850-14.

The listed De Soto LS 1 products are all bias-ply tires in older numeric sizing, and a tube is required. That applies to both 800-14 and 850-14 in the available range. Collector-car bias-ply applications of this type are commonly set up with tubes as part of the correct installation package.

When fitting tires to a De Soto LS 1, treat the tube as part of the overall assembly rather than an afterthought. The wheel condition matters as well, so a restorer should make sure the rim is clean, true, and suitable for tube-type service before mounting fresh bias-ply tires intended to preserve correct driving character and appearance.

A 1958 De Soto LS 1 is listed with two sizes, 800-14 and 850-14, so the correct choice depends on the specific configuration of the car. Both fit 14-inch wheels, but the 800-14 and 850-14 differ in nominal section width and in the wheel-width ranges associated with the available products. The narrower size generally fits 5.00 to 6.00 inch rims, while the wider size generally fits 5.50 to 6.00 inch rims.

Start by reading the size on the tire currently mounted, then check the wheel width and compare the car against original literature, restoration records, or marque-club guidance. That process matters on a De Soto LS 1 because the year alone does not narrow the choice to one tire size, and appearance changes noticeably between the two widths.

De Soto LS 1 tires are available in blackwall, narrow whitewall, and wide whitewall styles within the listed 1958 sizes. The 800-14 offerings include blackwall, narrow whitewall, and wide whitewall choices, while the 850-14 offerings include narrow whitewall and wide whitewall choices. Those sidewall differences can materially change the car’s late-1950s visual character.

A restorer choosing tires for a De Soto LS 1 should match the sidewall treatment to the intended presentation of the car. Wide whitewalls typically suit a more formal, period-rich appearance, while narrow whitewalls and blackwalls can create a subtler look. If the goal is authenticity, compare the sidewall style to period photos, surviving original examples, or marque references.

Three brands appear in the available De Soto LS 1 tire range: BFGoodrich, Universal Vintage Tire, and Goodyear. BFGoodrich products are offered in both 800-14 and 850-14, Universal Vintage Tire products appear in 800-14, and Goodyear products also appear in 800-14. All of the listed options are bias-ply tires suited to period-style fitment.

That brand mix gives a De Soto LS 1 owner room to prioritize different details such as sidewall appearance, series preference, and exact size coverage. Brand choice should come after the fitment decision, because selecting the correct size and wheel-width match is more important than choosing among period-style brand names for a 1958 full-size American car.

De Soto LS 1 tires appear in three series: Silvertown Classic Bias Ply, Universal Classic Bias Ply, and Goodyear Custom Super Cushion. All three are bias-ply constructions, but they represent different branded period-style offerings and sidewall presentations within the 14-inch sizes listed for 1958. Silvertown Classic Bias Ply covers both 800-14 and 850-14, while Universal Classic Bias Ply and Custom Super Cushion appear in 800-14.

For a De Soto LS 1 buyer, the practical difference is less about construction type and more about period look, brand preference, and available sidewall style. Once the correct size is identified, compare the series by appearance and intended restoration character, especially if the car is being judged, shown, or finished to a specific late-1950s visual theme.

A De Soto LS 1 should be stored on a clean, dry surface away from direct sunlight, ozone sources, and major temperature swings. Keep the tires properly inflated, avoid prolonged contact with petroleum products, and move the car occasionally if it will sit for long stretches. Collector cars with bias-ply tires can develop flat spotting more readily when left motionless.

If a De Soto LS 1 will be parked for months at a time, many owners reduce stress on the tires by using storage practices that limit continuous loading on one contact patch. Even when the car is not driven often, visual condition alone is not enough; regular storage discipline helps preserve both appearance and serviceability.

Tires on a De Soto LS 1 should be inspected before each drive and more thoroughly at regular intervals during the season. On a low-use collector car, time and storage conditions matter almost as much as mileage, especially with bias-ply construction. Look for cracking, bulges, uneven wear, pressure loss, and any sign of tube or valve-stem trouble.

A 1958 De Soto LS 1 may spend long periods in the garage, which can hide developing problems until the car is finally put back on the road. A careful inspection routine is one of the easiest ways to avoid damage to a restored car and to catch age-related issues before they become a roadside failure.

A De Soto LS 1 tire should be replaced when age, cracking, hardening, vibration, structural damage, or persistent air-loss issues appear, even if the tread still looks substantial. Collector-car tires often age out before they wear out, and bias-ply designs can become less trustworthy as the casing and rubber deteriorate over time. Tread depth alone is not a complete measure of serviceability on a vintage car.

That is especially important on a De Soto LS 1 that sees occasional use, because long storage intervals can mask aging until the car is driven at speed. If there is any doubt about age or condition, have the tires evaluated during regular restoration or chassis service rather than waiting for obvious wear to make the decision.

The available De Soto LS 1 range shows 1958 fitments in 800-14 and 850-14 bias-ply form, with period-style offerings from BFGoodrich, Universal Vintage Tire, and Goodyear series such as Silvertown Classic Bias Ply and Custom Super Cushion. Because more than one size is associated with the same model year, original fitment depended on the specific configuration rather than the model name alone.

For a restoration-grade De Soto LS 1, the best way to pin down the original tire is to compare the car’s exact body style or trim with factory literature, surviving original examples, and marque-club guidance. That helps separate a generally correct late-1950s look from a truly configuration-correct restoration.

Correct tire fitment can absolutely affect how a De Soto LS 1 is judged and perceived, because tire size, sidewall style, and overall stance are visually prominent on a large 1958 American car. A De Soto LS 1 wearing the wrong width or an inappropriate whitewall treatment can look subtly off even to casual observers, and more noticeably so to marque judges.

Owners restoring a De Soto LS 1 for concours, marque events, or high-level resale should treat tire choice as part of the car’s exterior authenticity. Matching the correct 800-14 or 850-14 size and choosing an era-appropriate blackwall, narrow whitewall, or wide whitewall style can help the finished car present with the proportions it was meant to have.

De Soto LS 1 restoration options in the available range include blackwall, narrow whitewall, and wide whitewall styles. For a late-1950s American car, whitewall treatment is often a significant visual choice, and both narrow and wider bands were part of the era’s look. The correct answer for a specific De Soto LS 1 depends on how that individual car was originally equipped and presented.

A restorer should use period photography, original sales material, and marque knowledge to decide which sidewall treatment best suits the intended result. Wide whitewalls generally create a more formal, highly period-correct showroom appearance, while narrow whitewalls or blackwalls may better fit certain trims, personal-history restorations, or understated presentations.

A properly fitted, properly maintained De Soto LS 1 bias-ply tire can be suitable for public-road use when the rest of the car is mechanically sound and the tire matches the correct 1958 size and wheel. The listed options are all bias-ply designs, so they preserve period driving character rather than mimicking modern radial behavior. Safety depends on condition, inflation, installation quality, and the overall state of the vehicle.

A 1958 De Soto LS 1 should be driven with the expectations appropriate to a large vintage American car on bias-ply tires. Steering response, braking feel, and tracking will differ from a modern car, so the driver should give the car more space, more time, and a more conservative operating margin than contemporary traffic might suggest.

Before driving a De Soto LS 1, check tire pressure, visible sidewall condition, tread condition, valve stems, and any signs of air loss or uneven stance. Confirm that the tires are the correct 800-14 or 850-14 size for the car’s setup and that there is no rubbing, bulging, or obvious mismatch between tire and wheel width. On a collector car, the wheel and tube condition matter along with the tire itself.

That quick pre-drive routine is especially worthwhile on a De Soto LS 1 that is not driven every week. A car that has sat can develop low pressure, age cracks, or brake and suspension issues that become more noticeable once underway, so a short inspection before moving off is part of safe old-car operation.

A De Soto LS 1 fitted with period-style bias-ply tires should be driven at moderate, sensible speeds that respect both the tire design and the overall capability of a 1958 car. Even when fresh and correctly fitted, bias-ply tires do not deliver the same stability, heat tolerance feel, or lane-tracking behavior that modern drivers expect from radial-equipped vehicles.

For practical use, a De Soto LS 1 should be driven smoothly and conservatively, with extra following distance and reduced speed on rough pavement, in crosswinds, or during emergency maneuvers. The goal is not simply what speed the car can reach, but what speed allows the chassis, brakes, steering, and tires to work together with an appropriate safety margin.