The 2008 Jeep Trucks Grand Cherokee sits at an interesting point in the model’s evolution, blending traditional Jeep SUV capability with increasingly road-focused trim distinctions. That matters when it comes to tires, because this year’s Grand Cherokee does not rely on one universal fitment across the lineup. Radial tire sizes range from 245/65R17 and 245/60R18 on Laredo, Limited, and Overland models to a staggered 255/45R20 front and 285/40R20 rear setup on the SRT8. Available choices also vary by brand, sidewall treatment, and tire series. The right selection starts with confirming the exact sub-model and wheel diameter before narrowing the tire style that suits your intended use.
Which Tire Size Is Right for The 2008 Jeep Trucks Grand Cherokee
Four primary tire sizes apply to the 2008 Jeep Trucks Grand Cherokee, and they vary by sub-model and wheel diameter. Laredo uses 245/65R17, while Limited and Overland may use either 245/65R17 or 245/60R18. The SRT8 uses a staggered 20-inch setup with 255/45R20 in front and 285/40R20 in the rear, so identifying the exact trim and confirming the wheel diameter must come first.
245/65R17 is a metric radial size: 245 identifies the nominal section width in millimeters, 65 is the aspect ratio, R indicates radial construction, and 17 is the wheel diameter in inches. On the 2008 Jeep Trucks Grand Cherokee, this size serves as a primary fitment for the Laredo and is also used on certain Limited and Overland configurations. Available product choice in this size includes a BFGoodrich All-Terrain T/A KO2 with raised white letter sidewall styling. This size is the one to evaluate when the vehicle has 17-inch wheels and the goal is to keep the proper basic fitment range.
245/60R18 follows the same metric radial sizing format, with a 245-millimeter nominal section width, a 60-series profile, radial construction, and an 18-inch rim diameter. This size applies to certain 2008 Jeep Trucks Grand Cherokee Limited and Overland models, making it a trim- and wheel-specific fitment rather than a universal one across the lineup. Its overall dimensions stay close to the 17-inch alternative, but the wheel requirement is different and should be confirmed before tire selection. This is the size to focus on when the vehicle is equipped with factory-style or replacement 18-inch wheels.
255/45R20 is a metric radial size with a 255-millimeter nominal section width, a 45-series profile, and a 20-inch rim diameter. On the 2008 Jeep Trucks Grand Cherokee, this size is used on the SRT8 front axle as part of a staggered performance-oriented setup, so it should not be treated as a four-corner fitment. Product choice is broader here, with BFGoodrich, Nitto, and Pro-Trac offerings, plus Blackwall, raised white letter, and Redline sidewall treatments across several tire series. This size is the correct starting point when confirming the front tire fitment on an SRT8 with 20-inch wheels.
285/40R20 is a metric radial size where 285 denotes the nominal section width in millimeters, 40 is the aspect ratio, and 20 is the wheel diameter. For the 2008 Jeep Trucks Grand Cherokee, this size is used on the SRT8 rear axle, pairing with a narrower 255/45R20 front tire in a staggered arrangement. Its role is specific to that rear position, so front-to-rear substitution should not be assumed. This is the rear fitment to verify when maintaining the SRT8’s intended wheel and tire setup, especially on vehicles that may have seen wheel or suspension changes.
Sub-model fitment matters on the 2008 Jeep Trucks Grand Cherokee because tire size changes across the lineup and wheel diameters are not the same. Laredo, Limited, Overland, and SRT8 configurations each need to be matched to the correct wheel and tire combination before comparing product choices.
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2008 Jeep Trucks Grand Cherokee Laredo
The 2008 Jeep Trucks Grand Cherokee Laredo uses a straightforward tire fitment centered on 245/65R17 radial tires. That makes selection more about confirming the 17-inch wheel setup and deciding whether the available tire style matches the vehicle’s intended road or light truck use.
The 2008 Jeep Trucks Grand Cherokee Limited can use either 245/65R17 or 245/60R18 radial tires, depending on the wheel package on the vehicle. Tire selection starts with confirming whether the Limited has 17-inch or 18-inch wheels before comparing replacement options.
The 2008 Jeep Trucks Grand Cherokee Overland also appears with either 245/65R17 or 245/60R18 radial tires. The main decision is not between tire constructions, but between the actual wheel diameters fitted to the vehicle and the tire size that matches them.
The 2008 Jeep Trucks Grand Cherokee SRT8 front fitment uses 255/45R20 radial tires. That front-specific sizing means tire selection should preserve the staggered 20-inch arrangement and focus on the product style and series that best suit the vehicle’s setup.
The 2008 Jeep Trucks Grand Cherokee SRT8 rear fitment uses 285/40R20 radial tires. Because this rear size is wider than the front, selection should begin with confirming the rear wheel position and maintaining the intended staggered fitment.
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 2008 Jeep Trucks Grand Cherokee Tires for Sale
Available tire choices for the 2008 Jeep Trucks Grand Cherokee are concentrated in 245/65R17 and 255/45R20, with BFGoodrich, Nitto, and Pro-Trac options in the mix. Buyers can compare all-terrain versus street-oriented series, along with Blackwall, Redline, and raised white letter sidewall treatments.
Tire questions for the 2008 Jeep Trucks Grand Cherokee usually center on sub-model fitment, 17-, 18-, or 20-inch wheel diameter, and the SRT8’s staggered setup. The FAQs below also cover product selection, appearance choices, and practical checks before road use.
Tire Size & Fitment
What tire size fits a 2008 Jeep Trucks Grand Cherokee?
The 2008 Jeep Trucks Grand Cherokee uses four primary tire sizes across its lineup: 245/65R17, 245/60R18, 255/45R20, and 285/40R20. Laredo uses 245/65R17, Limited and Overland may use either 245/65R17 or 245/60R18, and the SRT8 uses a staggered setup with 255/45R20 in front and 285/40R20 in the rear.
That means the correct size depends on the exact sub-model and wheel package, not just the model name alone. Checking the trim level and confirming whether the vehicle has 17-inch, 18-inch, or 20-inch wheels is the first step before comparing tire brands, sidewall styles, or tire series.
What size rim does a 2008 Jeep Trucks Grand Cherokee use?
The 2008 Jeep Trucks Grand Cherokee uses three rim diameters across the model range: 17-inch, 18-inch, and 20-inch. The 245/65R17 fitment matches a 17-inch rim, the 245/60R18 fitment matches an 18-inch rim, and both SRT8 sizes, 255/45R20 front and 285/40R20 rear, are built for 20-inch wheels.
Wheel diameter should be confirmed before anything else because a tire must match the rim diameter exactly. On Limited and Overland models especially, that check matters since either 17-inch or 18-inch wheels may be present, while the SRT8 requires attention to both 20-inch rim diameter and front-versus-rear placement.
Do all 2008 Jeep Trucks Grand Cherokee sub-models use the same tire size?
No, the 2008 Jeep Trucks Grand Cherokee does not use one tire size across every sub-model. Laredo uses 245/65R17, Limited and Overland can use either 245/65R17 or 245/60R18, and the SRT8 uses a staggered arrangement with 255/45R20 on the front and 285/40R20 on the rear.
That variation means a buyer should not assume fitment from the Grand Cherokee name alone. Matching the tire to the actual trim and wheel setup helps avoid choosing the wrong rim diameter or confusing the SRT8’s front and rear positions, both of which are central to getting the correct replacement size.
Choosing the Right Tire
What should I consider when choosing a tire for a 2008 Jeep Trucks Grand Cherokee?
Start with the exact tire size and wheel diameter used on the vehicle, since the 2008 Jeep Trucks Grand Cherokee spans 17-inch, 18-inch, and 20-inch fitments. After size is confirmed, the next factors are the vehicle’s trim, whether the setup is staggered as on the SRT8, and the type of tire character you want, such as all-terrain or street-oriented use.
Product details can also shape the choice, including rim-width compatibility, sidewall style, tire series, and load figures where they are stated. A Laredo running 245/65R17 calls for a different comparison than an SRT8 front tire in 255/45R20, so the vehicle’s actual wheel and use pattern should guide the final decision.
What sidewall styles are available for 2008 Jeep Trucks Grand Cherokee tires?
Available sidewall styles for the 2008 Jeep Trucks Grand Cherokee include Blackwall, RWL, and Redline, depending on tire size and product series. In 245/65R17, the available option uses raised white letters, while 255/45R20 products include Blackwall choices along with RWL and Redline versions in the Pro-Trac Street Pro III line.
Sidewall style mainly affects appearance, so the best choice depends on how the vehicle is being presented and used. A Blackwall look suits a more understated presentation, while raised white letters or a Redline treatment create a stronger visual statement, especially on a 20-inch SRT8 fitment where appearance is often part of the buying decision.
What brands offer tires for the 2008 Jeep Trucks Grand Cherokee?
BFGoodrich, Nitto, and Pro-Trac all appear in available tire choices for the 2008 Jeep Trucks Grand Cherokee. BFGoodrich covers both the 245/65R17 all-terrain option and multiple 255/45R20 performance-oriented products, while Nitto and Pro-Trac appear in the 255/45R20 fitment with street-focused tire lines and different sidewall presentations.
Brand comparison should still happen within the correct size and application. A 245/65R17 Laredo replacement is a different buying decision than a 255/45R20 SRT8 front tire, so the most useful approach is to confirm fitment first, then compare tire series, sidewall style, rim-width suitability, and any stated load or weight figures.
Restoration & Appearance
Which tire should I choose for a period-style 2008 Jeep Trucks Grand Cherokee?
A period-style 2008 Jeep Trucks Grand Cherokee tire choice starts with using the correct original-type size for the exact trim and wheel package, whether that is 245/65R17, 245/60R18, or the SRT8’s staggered 20-inch setup. Since all primary fitments here are radial, the decision is less about vintage construction and more about preserving the proper stance and visual balance.
Appearance then comes down to tire character and sidewall treatment. Raised white letters can give a more assertive truck-style look, while Blackwall keeps the presentation cleaner and more subdued; on some 255/45R20 options, Redline adds a stronger custom visual cue. For exact showroom-era appearance, period photos and marque-specific references remain useful checkpoints.
Does correct tire fitment matter for a 2008 Jeep Trucks Grand Cherokee restoration?
Yes, correct tire fitment matters because the 2008 Jeep Trucks Grand Cherokee uses different sizes across Laredo, Limited, Overland, and SRT8 models, and those differences affect both appearance and stance. A restoration-minded vehicle can look noticeably off if the wheel diameter, front-to-rear sizing, or sidewall profile does not match the trim’s intended configuration.
The SRT8 deserves especially careful attention because its front and rear tires are not the same size. On Limited and Overland models, confirming whether the vehicle belongs on 17-inch or 18-inch wheels is just as important. Keeping the proper fitment baseline makes later choices about brand, sidewall style, and tire series much easier to judge.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2008 Jeep Trucks Grand Cherokee?
Yes, modifications can affect tire fitment on a 2008 Jeep Trucks Grand Cherokee even when the tire size itself is correct on paper. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, lift components, or brake upgrades can all change how much room the tire has around the fender, steering components, and suspension.
That matters most on vehicles with larger wheel packages or the SRT8’s staggered setup, where front and rear sizes already serve different roles. Checking actual wheel diameter, wheel width, and clearance at full steering lock and normal suspension travel is a smart step before selecting replacement tires for a modified Grand Cherokee.
What should I inspect before driving a 2008 Jeep Trucks Grand Cherokee on new tires?
Before driving a 2008 Jeep Trucks Grand Cherokee on new tires, inspect wheel condition, confirm the tire size matches the vehicle’s trim and wheel diameter, and check that inflation pressure is set appropriately for the tire being used. It is also worth looking over the valve stems, lug hardware, and general mounting quality before putting miles on the vehicle.
A quick road-use inspection should also include tread seating, any signs of rubbing, and basic suspension and steering condition. On an SRT8, make sure the front and rear positions have not been mixed, while on Limited or Overland models the main concern is confirming that the tire matches the 17-inch or 18-inch wheel actually installed.
How often should tires on a 2008 Jeep Trucks Grand Cherokee be inspected?
Tires on a 2008 Jeep Trucks Grand Cherokee should be inspected regularly, especially if the vehicle sees seasonal use, long periods of storage, or occasional enthusiast driving. Look for uneven wear, air loss, cracking, cuts, bulges, and any signs that the tire is contacting suspension parts or fender edges during normal use.
Routine checks are especially helpful on vehicles that may have changed wheels over time or that use the SRT8’s staggered arrangement, since rotation patterns and wear expectations are different. Inspection should also happen before longer trips, after winter storage, and whenever ride quality, steering feel, or straight-line tracking changes noticeably.
