De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite Tires

De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite use two listed tire sizes for 1958: 850-14 and 900-14. Both are numeric bias-ply sizes built for 14-inch rims. The 850-14 products fit wheel widths from 5.50 to 6.00 inches, while the 900-14 products fit wheel widths from 6.00 to 7.00 inches.

That means the correct choice depends on the actual wheel and the specification used on your particular car, not just the model name alone. If the car has already been restored or modified, verify the tire size currently on the car, measure the wheel width if needed, and compare the wheel to factory literature or marque references before deciding.

On a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite, 850-14 is a traditional numeric bias-ply size. The 850 portion indicates a nominal section width of about 8.50 inches, and the 14 indicates the wheel diameter in inches. The available 850-14 tires are intended for 14-inch rims with a recommended width range of 5.50 to 6.00 inches.

This older sizing system does not read the same way as modern metric radial sizing, so it helps to think of it as a period-correct bias-ply designation rather than a direct modern equivalent. On a collector De Soto, the important next step is making sure the actual wheel matches that width range so the tire sits correctly and preserves the car’s proper stance.

A 1958 De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite can show both 850-14 and 900-14 because the model line used more than one tire-and-wheel combination in the same year. The split here is not a wheel-diameter change, since both sizes use 14-inch rims. The practical difference is section width and the wheel-width range each tire is designed to fit.

When one year carries two sizes, the safest approach is to identify the exact wheel on the car and then match the tire to that wheel instead of choosing by appearance alone. Checking the existing wheel width, any surviving factory paperwork, and restoration records will usually settle whether the car should wear the narrower 850-14 or the wider 900-14.

De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite tire options in these listings are all bias-ply products in older numeric sizing, and a tube is required. That applies to both 850-14 and 900-14. Tube use is part of the proper installation approach for these period-style bias-ply tires.

Using the correct tube and flap setup where appropriate helps the tire seat and function as intended on a vintage wheel. Since many collector cars have had wheel changes over the years, it is wise to inspect the wheel condition, valve area, and rim profile during mounting so the tube-and-tire assembly matches the car’s current hardware.

To confirm the correct tire size for a 1958 De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite, start with the actual wheel on the car. The listed choices are 850-14 for 5.50 to 6.00 inch rims and 900-14 for 6.00 to 7.00 inch rims, so wheel width is a key deciding factor. Existing tire markings, original paperwork, and restoration records can also help narrow the correct fitment.

That extra verification matters because two cars from the same model year may not be wearing the same wheel today. A car restored for factory appearance may call for one approach, while a long-owned driver may have had wheel changes decades ago. Matching tire size to the actual rim keeps the car’s proportions right and avoids forcing a tire onto an unsuitable wheel.

De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite tires are available here in two sidewall styles: a 2.25 inch whitewall and a 1.00 inch whitewall. Both styles are offered in both listed sizes, 850-14 and 900-14. That gives buyers the choice between a broader period whitewall look and a more restrained narrow whitewall appearance.

For a late-1950s American car, whitewall presentation has a major effect on the finished look of the car, especially on a full-size De Soto. If the goal is restoration accuracy, compare the sidewall width to period photos, original sales material, and the trim level of your specific car. If the goal is a driven collector with an era-correct feel, either style can shape the car’s visual character differently.

The available tires for De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite in these sizes are from BFGoodrich. All four listed products use the Silvertown Classic Bias Ply series, with choices split by size and whitewall width rather than by multiple brands. That keeps the selection period-focused and consistent in construction type.

With one brand represented, the real decision shifts to size, wheel-width compatibility, and visual presentation instead of comparing several manufacturers. That can simplify a restoration, especially if you want all four tires to present the same tread and sidewall style. It also makes it easier to choose a matched set once the correct 14-inch size has been confirmed.

A De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite should be stored in a cool, dry, dark space with the tires kept away from direct sunlight, electric motors, ozone sources, and petroleum contamination. Keep the tires inflated to an appropriate stored condition and move the car occasionally if it remains on the ground for long periods. Clean, stable storage conditions are especially important for bias-ply collector tires.

Long static storage can create flat spotting and unnecessary stress on both the tire carcass and the suspension of a heavy late-1950s car. If the De Soto will sit for an extended season, many owners use tire cradles or relieve some weight from the tires while keeping the suspension supported properly. Good storage habits protect appearance as much as function.

Tires on a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite should be inspected before each drive and given a more thorough inspection several times during the driving season. Check inflation, sidewall condition, tread surface, valve stems, and any signs of uneven wear or impact damage. On a bias-ply collector tire, small changes in condition can affect both ride quality and tracking.

A car that is driven only occasionally can still develop problems while parked, so mileage alone is not a reliable guide. Seasonal inspections are a good time to confirm that the tires still match the wheels properly and that no suspension or alignment issue is beginning to show. Catching problems early helps preserve both the tires and the car’s road manners.

Tires on a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite should be replaced when age, cracking, hardening, puncture history, impact damage, or internal deterioration make them questionable, even if the tread still looks serviceable. Collector cars often accumulate very little mileage, so visible tread depth can be misleading. On an older bias-ply tire, condition and age matter more than tread alone.

A De Soto that still appears lightly used can still be riding on tires that are no longer suitable for dependable road service. If the car has been in storage for years, or if there is any doubt about the age of the tires, have them evaluated during routine service rather than waiting for a failure. Replacement timing should follow condition, age, and intended use, not appearance alone.

De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite show two listed 1958 tire sizes: 850-14 and 900-14, both in a classic bias-ply format. The available products fall within the Silvertown Classic Bias Ply family and are offered with either narrow or wide whitewalls. Since more than one size appears for the same model year, the exact original fitment depends on the specific car and wheel combination.

For a restoration where factory accuracy matters, the right reference is the individual car’s original literature, build information, and accepted marque sources. Matching the proper size is only part of the job; sidewall width also changes the car’s visual authenticity. Getting both size and whitewall treatment right helps a restored De Soto look settled and era-correct.

Correct tire fitment can absolutely affect both judging and buyer perception for a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite. Size, sidewall width, overall stance, and period-appropriate construction all influence how authentic the finished car appears. On a prominent late-1950s American car, an incorrect tire can change the visual balance of the body and wheel openings very quickly.

Judges and knowledgeable buyers often notice whether a car sits too tall, too wide, or carries a whitewall style that does not suit the restoration goal. If the car is being prepared for shows or offered as a high-quality restoration, compare the final tire choice with period imagery and guidance from De Soto clubs or marque experts. Those details can make a meaningful difference.

De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite tires are available here with either a 2.25 inch whitewall or a 1.00 inch whitewall. Both are plausible late-1950s visual treatments, but they create distinctly different appearances on the car. The wider whitewall leans more toward full period flair, while the narrower whitewall gives a subtler look.

The correct choice depends on the presentation you are trying to recreate for your specific De Soto. A concours-oriented restoration should be checked against original photographs, brochures, and club guidance for the exact model and trim. A driven restoration can use the sidewall style that best matches the car’s overall look, as long as the underlying tire size and wheel-width fitment are correct.

A properly selected and properly maintained bias-ply tire can be suitable for public-road use on a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite when the rest of the car is equally roadworthy. The listed tires are purpose-built collector bias-ply products in the correct period style, with 850-14 carrying 1740 pounds at 32 psi and 900-14 carrying 1860 pounds at 32 psi. Safe use depends on correct size choice, sound wheels, proper inflation, and overall vehicle condition.

Road safety on a late-1950s collector car is never just about the tire itself. Before regular driving, make sure the De Soto’s brakes, steering, suspension, alignment, and wheel condition are all in good order, because bias-ply tires will reflect those issues more readily than many modern drivers expect. A careful setup gives the car the best chance to drive as intended.

Before driving a De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite, inspect tire pressure, sidewall condition, tread condition, wheel security, and any signs of damage or age-related cracking. Also confirm that all four tires are the intended size for the car and that the wheel width matches the tire being used. On a heavy 1958 De Soto, those basics directly affect stability and ride quality.

A short pre-drive check is especially worthwhile on a collector car that may sit for weeks between outings. Bias-ply tires can also reveal steering or suspension issues quickly, so note any pull, shimmy, or unusual vibration as soon as the car is moving. If anything feels different from the car’s normal behavior, stop and inspect before continuing the drive.

A De Soto LS 2-H-8 Firedome & LS 3-H-8 Fireflite on period-style bias-ply tires should be driven at speeds appropriate to the condition of the tires, the condition of the car, and the realities of vintage chassis design. Even when the car is fitted correctly, bias-ply tires do not behave like modern radial tires in tracking, braking feel, or response to road grooves. A smooth, moderate, attentive driving style suits them best.

The goal with a collector De Soto is controlled, confident touring rather than treating the car like a modern highway sedan. Keep speed within the comfort zone of the car, the road surface, and the condition of the entire running gear, especially if the vehicle is newly restored or newly returned to service. Gradual familiarization is the best approach after tire installation.