1991 Chevrolet K1500 tire sizes & fitment
Approved tire and wheel sizes for the 1991 Chevrolet K1500, sourced from manufacturer fitment data and refreshed monthly.
Approved fitments
| Tire size | Rim size | PCD (bolt pattern) | Offset | Load index | Speed rating |
|---|---|---|---|---|---|
| 225/75R16 OEM | R16 | N/A | N/A | N/A | N/A |
Best by use case
Four tires, four jobs
See the best tires for the Chevrolet K1500, ranked by category →
Tire recalls & safety complaints for the Chevrolet K1500 →
Plus-size and winter-downsize options for every Chevrolet K1500 factory size →
Compatible alternative sizes for 225/75R16
Sizes within the ETRTO ±3% overall-diameter safe-fit tolerance. Each row links to the size's own page.
| Alternative size | %Δ OD | Category | Verdict |
|---|---|---|---|
195/80R17 |
-0.01% | plus 1 | Safe |
205/70R18 |
0.04% | plus 2 | Safe |
215/85R15 |
0.35% | winter narrower | Safe |
225/70R17 |
0.39% | plus 1 | Safe |
225/80R15 |
-0.39% | alternative | Safe |
For the full list of alternatives with comfort/handling impact, see 225/75R16 upsize options. To check an arbitrary size pair, use the tire compatibility calculator.
Check a different size against this vehicle
Type any tire size below; we'll compute its overall-diameter delta against the OEM 225/75R16 and verdict using the ETRTO ±3% rule.
Common upgrade paths
- Plus-1: 195/80R17; one rim size up, -0.01% OD change. Sharper steering, mild ride penalty, modest cost premium.
- Plus-2: 205/70R18; two rim sizes up, 0.04% OD change. Noticeable ride penalty, higher pothole risk, meaningful tire-cost premium.
Use the plus-size calculator to evaluate any rim step against the OEM size.
How to choose tires for the 1991 chevrolet K1500
The 1991 Chevrolet K1500 ships from the factory on 225/75R16 tires mounted on R16 wheels. Only one approved fitment is documented for this model year, so replacement options should match the original size exactly unless a plus-size upgrade is being considered. The Compatible alternative sizes table above lists every safe substitution within the ETRTO ±3% overall-diameter tolerance.
Tire choice on the Chevrolet K1500 comes down to three trade-offs that matter more than brand loyalty: load index (must equal or exceed the OEM number), speed rating (must match or exceed the placard), and UTQG treadwear (higher means longer life, lower usually means stickier rubber). Owners replacing factory tires with the same compound class, for example all-season for all-season, generally see no change in ride characteristics or fuel economy. Switching categories (performance summer to all-season touring, for example) is where the trade-offs show up at the contact patch.
For 1991 Chevrolet K1500 owners considering a plus-size upgrade, the safer option is a Plus-1 step (one rim size up with a 10-point aspect drop and ~10 mm of additional section width). Plus-2 is technically viable on this chassis if the alternative-sizes table lists a Plus-2 candidate within tolerance, but expect a meaningful ride-harshness penalty and a tire-cost premium of 30–60% per tire relative to the OEM fitment. For winter use the recommended pattern is one width step down (e.g. from a 235 to a 225) with the aspect ratio bumped up to preserve overall diameter; narrower tires apply higher contact pressure per square inch on snow, which translates directly into shorter braking distances. The plus-size calculator evaluates any specific rim step against this OEM size.
Before purchasing, verify the tire size on the driver-door placard of your specific 1991 Chevrolet K1500, since trim levels and option packages can shift the original fitment from what is documented here. The placard reading is the authoritative source per FMVSS 110, and dealers will reference the placard rather than aftermarket catalogs when validating warranty claims.
NHTSA-reported issues for 1991 chevrolet K1500
Top issue category: Tires (General)
Most reported: Tires (General) (15) · Tread / Belt (6) · Spare Tire (5)
Reported across: 1988 – 1996 (6 years)
What owners described
Tread or belt separation appears in 29% of these reports; about 2.2× as often as across all tire complaints. Percentages are shares of the 17 reports covering every model year of the Chevrolet K1500 that include a written account; a single report can describe more than one problem, so they do not total 100%.
| Reported problem | This subject | All tire complaints | Relative |
|---|---|---|---|
| Tread or belt separation | 29% | 13% | 2.2× |
| Loss of control, rollover or collision | 24% | 8% | 2.8× |
| Sidewall failure | 18% | 15% | 1.2× |
| Cracking or dry rot | 18% | 9% | 1.9× |
| Blowout or sudden deflation | 12% | 20% | 0.6× |
| Bubble or bulge in the tire | 6% | 6% | 1.0× |
Mileage at failure
9 of these reports state an odometer reading. The middle report is at 56,000 miles, with 8 in 10 falling between 1,500 and 190,245 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Chevrolet K1500. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
WHILE DRIVING ABOUT 74 MPH RIGHT REAR TIRE (FIRESTONE DUALER 256/16) EXPERIENCED TREAD SEPARATION, CAUSING CONSUMER TO LOSE CONTROL OF VEHICLE AND CRASH INTO GUARDRAIL HEAD ON, THE PASSENGER WAS THROWN INTO DRIVERS SIDE SUSTAINING INJURIE., THIS WAS THE THIRD TIRE THAT HAD PROBLEMS WITH. TIRE WAS TURNED OVER TO FIRESTONE FOR INSPECTION CONTACT PERSON IS JAMES E CRAHAN P.O. BOX 18006, KANSAS CITY, MO 64133 PH-816-358-6111. *AK *MJS
WHEN WE BOUGHT THIS TRUCK IN 1988, THE ORIGINAL TIRES WERE FIRESTONES. AT ABOUT 44,000 MILES, I HAD TO REPLACE THEM DUE TO THE PEELING THAT WAS TAKING PLACE. IT HAD PEELED ENOUGH TO EXPOSE A LAYER OF WHITE UNDERNEATH. I STILL HAVE THE ORIGINAL FIRESTONE SPARE TIRE, WHICH I USED ONLY ONCE. I HAVE HEARD THAT THE PROBLEMS WENT BACK TO 1991, I CONTEST THAT, IT GOES BACK TO 1988. ENCLOSING, I HAD BOUGHT GOODYEARS TO REPLACE THEM, AND THEY LASTED ME 56,000 MILES. FORTUNATE, I DID NOT HAVE A ACCIDENT DUE TO TIRE FAILURE. THANK YOU FOR YOUR TIME.
HAVE REPORTED ANOTHER INCIDENT (ODI #766215). WHILE DRIVING TO HAVE THAT TIRE REPLACED THE LEFT FRONT TIRE DEVELOPED SEVERE VIBRATION AND THUMPING SOUND. WHEN CHECKED THERE WAS A LARGE BUBBLE, APPROXIMATELY 4"X2" AT THE JUNCTION OF THE TREAD AND SIDEWALL. THE BUBBLE WAS IN THE TREAD SECTION. I HAD DRIVEN ABOUT 120 MILES AFTER THE OTHER TIRE HAD SEPARATED.
WHILE TRAVELING ON THE HIGHWAY AT APPROX. 70MPH, THE TREAD ON THE REAR DRIVER SIDE TIRE SEPARATED RAPIDLY, RESULTING IN COMPLETE DESTRUCTION OF THE TIRE. AFTER INSTALLING THE SPARE AND RETURNING HOME, I INSPECTED THE OTHER THREE TIRES WHICH ALL HAVE DISTINCT CRACKS FORMING AT THE TREAD/SIDEWALL CORNERS. ON ONE TIRE, I CAN ACTUALLY SEE THE STEEL BELTS BETWEEN THE CRACKS.
Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.
Frequently asked questions
What size tires fit a 1991 Chevrolet K1500?
Can I run a different tire size on my 1991 Chevrolet K1500?
Where can I buy tires for my 1991 Chevrolet K1500?
What is the recommended tire pressure for the 1991 Chevrolet K1500?
Can I fit winter tires in a different size on my 1991 Chevrolet K1500?
How often should I rotate the tires on my 1991 Chevrolet K1500?
For broader tire questions; replacement timing, UTQG, EV-specific tires, winter swaps; see the tire FAQ.
Sources for this page
- Vehicle owner's manual tire & wheel placard; door-jamb placard on the Chevrolet K1500 is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
- NHTSA SaferCar; recall lookup for the 1991 Chevrolet K1500.
- ETRTO 2024 Standards Manual §2.3; overall-diameter math used for the alternative-size verdicts above.
- Tire & Rim Association 2025 Yearbook; load-index to maximum-load reference.
Last verified 2026-10-07.