Tests – · none yet Owners 64 · 17 reviews
Head-to-head
Updated
Firestone Transforce AT2 vs Cooper Discoverer AT3 XLT — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Discoverer AT3 XLT is ahead, 77–65
Add your size for an exact match
/R
Both Amazon links then search this exact size.
TireWheelGuide may earn a commission from purchases made through these links.
Tests – · none yet Owners 80 · 800 reviews
“Put some new tires on the XD today. Cooper Discoverer AT3 XLT in 275/70R18. I usually run BFG KO2s on my trucks but wanted to try something different this time.”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
65
Dry
Discoverer AT3 XLT +1580Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 64 86 -
66
Wet
Discoverer AT3 XLT +1480Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 65 83 -
67
Snow
Discoverer AT3 XLT +471Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 65 71 -
60
Comfort
Discoverer AT3 XLT +1474Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 51 80 -
68
Noise
Discoverer AT3 XLT +573Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 68 81 -
67
Treadwear
Discoverer AT3 XLT +673Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 68 77 -
58
Handling
Discoverer AT3 XLT +2179Why this score
Source Transforce AT2 Discoverer AT3 XLT Reviews found online 58 79
Scores at a glance
| Category | Firestone Transforce AT2 | Cooper Discoverer AT3 XLT |
|---|---|---|
| Relative Score | 65 | 77 |
| Dry | 65 | 80 |
| Wet | 66 | 80 |
| Snow | 67 | 71 |
| Comfort | 60 | 74 |
| Noise | 68 | 73 |
| Treadwear | 67 | 73 |
| Handling | 58 | 79 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
Important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Less important
NoneLessNeutralMoreMost
Less important
NoneLessNeutralMoreMost
Important
NoneLessNeutralMoreMost
Neutral
NoneLessNeutralMoreMost
Recomputed
Headline score
65
/ 100
Transforce AT2
77
/ 100
Discoverer AT3 XLT
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Transforce AT2
Not enough owner reviews yet to extract themes.
Tire B Discoverer AT3 XLT
Pros
- Significantly lower road noise than comparable aggressive all-terrain tires
- Excellent wet weather, snow, and slush traction
- Sturdy sidewalls and stable performance when towing heavy loads
Cons
- Some users report difficulty with balancing, leading to vibrations or a rough ride
- Tread life occasionally falls short of expectations for certain drivers
- Can struggle or get gummed up in deep mud
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Firestone Transforce AT2
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Cooper Discoverer AT3 XLT
Community opinion of the Cooper Discoverer AT3 XLT is overwhelmingly positive, with users frequently praising its smooth ride quality, exceptional quietness on the highway, and long-term durability compared to competitors like BFG KO2 and Toyo Open Country. Drivers also appreciate its solid value and performance when towing. A few users occasionally confuse the M+S marking with the Three-Peak Mountain Snowflake rating for severe winter conditions.
r/ram_trucks
·27 upvotes ·2024-07-11
“Cooper Discoverer AT3 XLT Picked up a set of Discoverer AT3 XLT from simple tire. With the 4th of July discounts all 4 were under 1k before taxes. I had the AT3 4S on a previous ram and they held up so I’m expecting good things here.”
r/ram_trucks
·22 upvotes ·2021-11-19
“New Cooper Discoverer AT3 XLT 275/75R20 these ride way better than my old Open Country A/T II”
r/Trucks
·3 upvotes ·2021-03-26
“Are my Discoverer AT3 XLT snow rated? Going snowboarding and roads require snow tires or chains /cables. I was looking at the sidewall of my Cooper Discoverer XLT and saw there is a small M+S next to the tire size. Is it stupid to assume these are snow rated? I'm not trying to get a ticket for not having chains if I need them, which most places seem to be sold out locally.”
Top themes
#ride comfort#low road noise#tread longevity#winter and snow ratings#comparison to competitors#pricing and value#towing performance
Based on 8 community posts
Specs side by side
| Attribute | A · Firestone Transforce AT2 | B · Cooper Discoverer AT3 XLT |
|---|---|---|
| Category | — | Premium Touring All Season tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 17 | 4 |
| Rim diameters | 16″ – 20″ | 16″ – 20″ |
| Tread depth | 32/32″ | 16 - 18/32″ |
| Treadwear warranty | — | 60,000 mi |
| Sidewall | Outlined White Lettering | Black Side Wall - Raised White Lettering |
| Max pressure | 80 psi | 35 - 80 psi |
Which one should you actually buy?
65
/ 100
Firestone Transforce AT2
77
/ 100
Cooper Discoverer AT3 XLT
Winner: Cooper Discoverer AT3 XLT — better handling, dry and wet. It leads or ties in every category we score.
Pick tire B
You enjoy sharp, responsive handling
Cooper Discoverer AT3 XLT scores 79 vs 58 on handling.
Pick tire B
You want the most grip on dry roads
Cooper Discoverer AT3 XLT scores 80 vs 65 on dry.
Pick tire B
Your priority is wet-weather safety
Cooper Discoverer AT3 XLT scores 80 vs 66 on wet.
Pick tire B
You want the most comfortable ride
Cooper Discoverer AT3 XLT scores 74 vs 60 on comfort.
Tire A · Firestone Transforce AT2
Tire B · Cooper Discoverer AT3 XLT
TireWheelGuide may earn a commission from purchases made through these links.
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Community buzz from Reddit and forums is shown for context only — it never changes the score.