1991 GMC R3500 Spare Tire
The Chevrolet R3500, a heavy-duty pick-up truck designed for payload and towing capacity, comes equipped with a spare tire, which is typically located under the vehicle, towards the rear end. This spare tire is intended as an emergency replacement in the event of a flat tire and is not meant for long-term use. Its type and size can vary depending on the model year of your Chevrolet R3500; however, the majority of these trucks come with a full-size spare, often having the same dimensions as the tires that come installed on the truck. This could be a tire of size LT245/75R16, which is a light truck tire designed for all-season use, mostly. It is always best to check the owner's manual or consult with a Chevrolet dealership for the accurate spare tire size for your specific model year.
1991 GMC R3500 comes with 3 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact GMC dealership to confirm the correct 1991 GMC R3500 spare tire size.
7.50-16
7.50-16 tire has a diameter of 29.8". These temporary spare tires fit the acceptable tire diameter range of 28.9" to 30.7".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T175/90D18from $290.30 | 30.4" | 2% |
| T175/80R19from $182.97 | 30" | 0.7% |
| T155/90D18from $163.99 | 29" | -2.7% |
| T155/90R18from $134.96 | 29" | -2.7% |
| T165/90D18from $115.96 | 29.7" | -0.3% |
| T175/90R17 | 29.4" | -1.3% |
| T175/90D17 | 29.4" | -1.3% |
| T175/80R18 | 29" | -2.7% |
| T175/80D18 | 29" | -2.7% |
| T165/90R18 | 29.7" | -0.3% |
| T145/80R20 | 29.1" | -2.3% |
| T175/90R18 | 30.4" | 2% |
LT215/85R16
LT215/85R16 tire has a diameter of 30.4". These temporary spare tires fit the acceptable tire diameter range of 29.5" to 31.3".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T175/90D18from $290.30 | 30.4" | 0% |
| T175/80R19from $182.97 | 30" | -1.3% |
| T165/90D18from $115.96 | 29.7" | -2.3% |
| T165/90R18 | 29.7" | -2.3% |
| T175/90R18 | 30.4" | 0% |
LT235/85R16
No matching compact spares. Using a full-size spare tire is recommended.
More GMC R3500 Spare Tires
All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.