The 2020 RAM Trucks 1500 Classic carries the long-running DS-generation half-ton into the modern pickup era, blending familiar body-on-frame truck character with the broad usefulness that keeps these trucks on daily roads, job sites, and weekend duty. For this exact model, tire selection starts with confirming whether the truck is on a 17-inch or 20-inch wheel, since both 265/70R17 and 275/60R20 apply within the lineup and both are radial fitments. That makes the real decision less about vintage-style construction and more about matching the correct wheel setup, sub-model, and intended use. Owners should also account for any wheel or suspension changes before choosing a replacement.
Which Tire Size Is Right for The 2020 RAM Trucks 1500 Classic
The 2020 RAM Trucks 1500 Classic uses two primary tire sizes, and the right one depends first on the truck's exact sub-model and wheel diameter. Both fitments are radial, but they do not share the same rim size, so confirming whether the truck has a 17-inch or 20-inch wheel is the first step before comparing tire choices.
265/70R17 is a metric radial size in which 265 identifies section width in millimeters, 70 is the aspect ratio, R indicates radial construction, and 17 is the wheel diameter in inches. On the 2020 RAM Trucks 1500 Classic, this size serves 17-inch wheel applications rather than the whole model line. Available choices in this size center on BFGoodrich's All-Terrain T/A KO2 series with raised white letter sidewalls. It is the size to evaluate when the truck keeps its 17-inch wheel setup and the goal is a truck-oriented radial with the correct rim diameter.
275/60R20 is also a metric radial size, with a 275-millimeter section width, a 60-series profile, radial construction, and a 20-inch rim requirement. For the 2020 RAM Trucks 1500 Classic, this fitment belongs to 20-inch wheel applications and appears across several sub-models, including the Warlock. Its shorter sidewall profile compared with the 17-inch fitment makes wheel confirmation especially important before replacement. This is the size to consider when the truck is equipped with factory-style or equivalent 20-inch wheels and clearance has not been altered by modifications.
Sub-model fitment matters on the 2020 RAM Trucks 1500 Classic because some trims can use either of the two primary radial sizes, while the Warlock is tied to the 20-inch fitment. Checking the exact sub-model and actual wheel diameter keeps the tire search focused on the right starting point.
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2020 RAM Trucks 1500 Classic Express
The 2020 RAM Trucks 1500 Classic Express can use either the 265/70R17 or 275/60R20 radial size depending on wheel setup. Tire selection starts by confirming whether the truck is on a 17-inch or 20-inch rim before comparing tread style, load specification, and intended use.
The 2020 RAM Trucks 1500 Classic SLT also spans both primary tire sizes, so the sub-model name alone does not settle fitment. Verifying the truck's installed wheel diameter is the practical first step before choosing a replacement tire.
The 2020 RAM Trucks 1500 Classic Tradesman can be fitted with either 265/70R17 or 275/60R20 radial tires. That means the owner should confirm the actual wheel package on the truck rather than assuming one size applies to every Tradesman.
The 2020 RAM Trucks 1500 Classic Warlock uses the 275/60R20 radial size, making its fitment more straightforward than the trims that span two wheel packages. The main selection task is choosing a tire that matches the 20-inch wheel setup and the truck's intended road or light off-road use.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2020 RAM Trucks 1500 Classic Tires for Sale
Available product choices for the 2020 RAM Trucks 1500 Classic currently center on 265/70R17, with BFGoodrich All-Terrain T/A KO2 options in raised white letter radial construction. The main comparison points are load specification, weight, and 17-inch rim-width compatibility.
Common questions for the 2020 RAM Trucks 1500 Classic usually come down to identifying the correct tire size, confirming 17-inch versus 20-inch wheel fitment, and choosing a radial tire that suits the truck's setup, use, and maintenance needs.
Tire Size & Fitment
What tire size fits a 2020 RAM Trucks 1500 Classic?
The 2020 RAM Trucks 1500 Classic uses two primary tire sizes: 265/70R17 and 275/60R20. Both are radial fitments, but they do not apply interchangeably across every truck in the lineup because the model uses both 17-inch and 20-inch wheel packages.
The first thing to verify is the wheel diameter currently on the truck, then confirm the exact sub-model. Express, SLT, and Tradesman can appear with either size, while the Warlock uses 275/60R20, so checking the tire sidewall and wheel setup on the vehicle itself is the safest starting point before replacement.
What size rim does a 2020 RAM Trucks 1500 Classic use?
A 2020 RAM Trucks 1500 Classic uses either a 17-inch rim or a 20-inch rim, depending on the tire size fitted to the truck. The 265/70R17 tire matches a 17-inch wheel, while the 275/60R20 tire matches a 20-inch wheel.
Rim diameter should be confirmed before comparing any replacement tire because a 17-inch tire cannot mount on a 20-inch wheel, and the reverse is also true. On trims that can use both sizes, the actual wheel package matters more than the trim badge alone, especially if the truck has had wheels changed since new.
Why does the 2020 RAM Trucks 1500 Classic have more than one tire size?
The 2020 RAM Trucks 1500 Classic has more than one tire size because the model line was offered with different wheel packages across its sub-models. That is why both 265/70R17 and 275/60R20 appear within the same year, make, and model family.
That does not mean both sizes belong on every truck. Some trims, such as Express, SLT, and Tradesman, can be found with either fitment, while the Warlock uses the 20-inch size, so replacement starts with confirming the truck's current wheel diameter and checking for any aftermarket changes that may affect fitment.
Choosing the Right Tire
What should I consider when choosing a 265/70R17 tire for a 2020 RAM Trucks 1500 Classic?
A 265/70R17 tire for the 2020 RAM Trucks 1500 Classic should first match the truck's 17-inch wheel setup, then be compared by load specification, radial construction, and intended use. Available choices in this size include BFGoodrich All-Terrain T/A KO2 options with raised white letter sidewalls.
Product details matter because the available 265/70R17 versions do not carry the same load capacity or weight. Comparing the wheel-width specification, the truck's workload, and whether the truck spends more time on pavement or mixed terrain helps narrow the right choice without assuming every tire in the size serves the same role.
What sidewall styles are available for 2020 RAM Trucks 1500 Classic tires?
Among the available products for the 2020 RAM Trucks 1500 Classic, the current 265/70R17 options use an RWL sidewall, meaning raised white letters. That gives the truck a more traditional light-truck performance appearance than a plain blackwall presentation.
Sidewall style is mostly an appearance decision unless it is tied to a particular tire line or use category. It still makes sense to start with the correct size and wheel diameter, then decide whether the visible raised white letter look suits the truck's overall presentation and intended use.
What brands offer tires for the 2020 RAM Trucks 1500 Classic?
Current product coverage for the 2020 RAM Trucks 1500 Classic includes BFGoodrich in 265/70R17, specifically within the All-Terrain T/A KO2 family. That gives buyers a recognizable truck-tire option in the 17-inch fitment with radial construction and raised white letter styling.
Brand is only one part of the decision. A buyer should still confirm the truck's correct size first, then compare load capacity, rim-width compatibility, and how the tire will actually be used, since a tire that suits a light-duty road truck may not be the same choice for heavier work or mixed-surface driving.
Restoration & Appearance
Which tire should I choose for a period-style 2020 RAM Trucks 1500 Classic?
A period-style approach for a 2020 RAM Trucks 1500 Classic usually means staying with the correct original-type radial size for the truck's wheel package, either 265/70R17 or 275/60R20. That preserves the basic proportions intended for the DS-generation 1500 Classic without mixing wheel diameters or unrelated profiles.
Appearance still needs to be balanced with real-world use. A truck that is meant to keep a more rugged, factory-inspired stance may benefit from an all-terrain style and visible sidewall treatment, while a cleaner street presentation may lead in a different direction once the exact wheel setup has been confirmed.
Does correct tire fitment matter for a 2020 RAM Trucks 1500 Classic restoration?
Correct tire fitment matters because the 2020 RAM Trucks 1500 Classic was offered with more than one wheel-and-tire package, and the truck's stance is closely tied to that choice. Using the wrong rim diameter or an unrelated profile can change the visual balance just as quickly as it can complicate practical fitment.
Anyone restoring one of these trucks to a specific trim presentation should start by verifying the truck's actual sub-model and wheel setup. Once that baseline is established, sidewall appearance, tread character, and load specification can be chosen in a way that supports the truck's look without drifting away from the correct size family.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2020 RAM Trucks 1500 Classic?
Yes, modifications can affect tire fitment on a 2020 RAM Trucks 1500 Classic even when the tire size itself looks familiar. Aftermarket wheels, changes in wheel width or offset, leveling kits, suspension lifts, and lowering changes can all alter clearance at the fenders, steering components, and suspension.
That matters most on a truck that already has two different factory wheel diameters in circulation. Checking the actual wheel size, width, and overall tire clearance at full steering lock is a smart step before replacement, especially if the truck no longer sits on its original wheel-and-suspension combination.
What should I inspect before driving a 2020 RAM Trucks 1500 Classic on new tires?
Before driving a 2020 RAM Trucks 1500 Classic on new tires, inspect the wheels for damage, confirm the tire size matches the wheel diameter, and make sure inflation is set appropriately for the installed tire. It also helps to check lug torque, valve stems, and general suspension condition before regular use.
A short initial drive should be followed by another look for rubbing, unusual wear, or air loss, especially if the truck has non-stock wheels or suspension changes. Paying attention early can catch a clearance or setup issue before it turns into sidewall damage, irregular tread wear, or a less stable highway feel.
How often should tires on a 2020 RAM Trucks 1500 Classic be inspected?
Tires on a 2020 RAM Trucks 1500 Classic should be inspected regularly rather than only at replacement time. Frequent visual checks for uneven wear, cuts, punctures, cracking, bulges, and pressure loss are especially important on a truck that may split time between highway use, hauling, and rougher surfaces.
Monthly pressure checks are a sensible habit, and any vibration, pull, or visible shoulder wear deserves prompt attention. Trucks with all-terrain tires or seasonal use can benefit from even closer monitoring because tread condition, inflation, and alignment have a direct effect on tire life and how the truck tracks on the road.
