Jeep CJ6 Tires

Jeep CJ6 uses five listed sizes across the 1971 to 1978 production span: 7.35-15 for 1971 to 1973, E78-15 for 1974, F78-15 for 1971 to 1978, H78-15 for 1971 to 1978, and 600-16 for 1975 to 1978. The 7.35-15, E78-15, F78-15, and H78-15 sizes are all 15-inch fitments, while 600-16 is a 16-inch fitment.

That means year alone is not enough to choose a tire for a Jeep CJ6. Start with the model year, then confirm the wheel diameter and the size already on the Jeep or listed in factory literature for the exact configuration, since several years carry more than one valid size.

On a Jeep CJ6, 7.35-15 is a numeric bias-ply size. The 7.35 figure is the nominal section width in inches, and the 15 indicates the tire fits a 15-inch wheel. It is listed for 1971 through 1973 CJ6 applications.

That older numeric format does not work like a modern metric radial code, so it helps to read the full sidewall rather than guessing from appearance alone. If your Jeep CJ6 is using this size family, keep the tire matched to the correct 15-inch wheel and maintain the bias-ply setup consistently around the vehicle.

A 1975 Jeep CJ6 can show 600-16, F78-15, and H78-15 because more than one wheel-and-tire configuration is represented in that model year. In practical terms, that year includes both 15-inch and 16-inch applications rather than a single universal wheel size. The split is driven by rim diameter as well as size choice within the 15-inch group.

That is why a 1975 Jeep CJ6 owner should inspect the wheels before choosing a tire. If the Jeep carries 16-inch wheels, 600-16 is the relevant size family; if it carries 15-inch wheels, the correct path is one of the alphanumeric 15-inch sizes instead.

Jeep CJ6 uses both 15-inch and 16-inch rim diameters in this range. The 15-inch wheel sizes cover 7.35-15, E78-15, F78-15, and H78-15, while 600-16 uses a 16-inch rim. The 16-inch fitment first appears in 1975.

Wheel diameter is the first thing to verify because a sidewall size cannot be installed on the wrong rim diameter even if the Jeep appears otherwise correct. Measuring the wheel or reading the existing tire sidewall is a better starting point than relying on year alone, especially from 1975 through 1978.

A 1976 Jeep CJ6 has three listed sizes: 600-16, F78-15, and H78-15. That means the correct choice depends on the wheel diameter and the specific setup on the vehicle, not simply the model year. The first separation is 16-inch versus 15-inch wheels, and then the correct 15-inch size must be matched within that group.

Check the sidewall on the current tires, confirm the wheel diameter directly, and compare that information to any original paperwork for the Jeep CJ6. That approach is especially important on long-lived utility vehicles, where wheel swaps over the decades are common and can easily mislead a buyer.

Jeep CJ6 tire offerings in the listed products include blackwall, wide whitewall, and double-whitewall sidewall styles. H78-15 appears in blackwall and wide whitewall, while 600-16 has the broadest spread, including blackwall, wide whitewall, and double-whitewall options. Military and truck-oriented 600-16 products are predominantly blackwall.

A sidewall choice changes the look of a Jeep CJ6 as much as the tread pattern does. Buyers aiming for a work-oriented or military presentation usually lean toward blackwalls, while whitewall styles suit a more period passenger-car presentation and should be chosen carefully to match the intended restoration theme.

The listed Jeep CJ6 tire products come from Coker Classic, STA, BFGoodrich, Avon, Firestone, Ford Script, Excelsior, Lester, Goodyear, and Camac. H78-15 products are shown from Coker Classic and STA, while 600-16 has the broader brand spread. The range includes classic passenger-style, military-style, and utility-oriented series.

Brand choice on a Jeep CJ6 is less about one name being universally right and more about matching the vehicle’s intended character. A restored utility Jeep, a military-themed build, and a more stylized period restoration can all point toward different brands, sidewall treatments, and tread designs within the listed sizes.

Jeep CJ6 products span a wide range of series, including Coker Classic Bias Ply, Traxion, Silvertown Classic Bias Ply, Turbospeed Mk4, Firestone Classic Bias Ply, Ford Script, Excelsior Bias Ply, Lester Classic Bias Ply, Tourist Crossply, Traction Mileage, Goodyear Military NDT, Deluxe All-Weather, Firestone Classic Military, Firestone Military NDT, Military NDT, NATO CJ110, and Firestone Classic Truck. Those series divide broadly into classic passenger-style bias-ply tires, military NDT patterns, truck-oriented tread designs, and older touring crossply designs.

The practical difference is visual character and intended use profile rather than modern all-season equivalency. A Jeep CJ6 restored for civilian presentation may suit a classic bias-ply or whitewall series, while a trail, military, or work-focused build usually points toward NDT or truck-style tread patterns in the correct size and wheel diameter.

A stored Jeep CJ6 should be kept in a cool, dry, dark space away from direct sunlight, ozone sources, and petroleum contamination. Bias-ply collector tires are especially prone to flat spotting and sidewall stress when a vehicle sits in one position for long periods. Clean floors and stable temperatures help preserve both the rubber and the wheel finish.

If a Jeep CJ6 will sit for extended periods, keep the tires at proper inflation, move the vehicle occasionally, or support the vehicle to reduce sustained load. Those simple habits matter even more on a long-wheelbase utility vehicle that may carry extra weight or accessories compared with a lightly equipped show car.

Tires on a Jeep CJ6 should be inspected before regular road use and again after periods of storage. Collector bias-ply tires deserve routine checks for cracking, sidewall damage, tread separation, irregular wear, and air loss, especially on vehicles that see little annual mileage. Utility-style tread patterns also need close inspection for cuts or punctures from off-pavement use.

A Jeep CJ6 often leads a mixed life of hobby driving, trail use, and storage, so condition can change faster than mileage suggests. Make inspection part of the starting routine: look at inflation, scan the sidewalls, and verify that all four tires and the spare remain the same size family and construction type.

Tires on a Jeep CJ6 should be replaced when age, cracking, hardening, separation, or other structural deterioration appears, even if tread depth still looks usable. Collector tires can age out long before they wear out, particularly on vehicles driven infrequently. Bias-ply construction and long storage intervals make regular age-based assessment more important than tread measurement alone.

A Jeep CJ6 owner should treat visible aging as a service-life warning, not a cosmetic issue. If the Jeep is driven on public roads, have older tires evaluated by a specialist familiar with collector vehicles and replace them when condition is in doubt rather than trying to stretch life from a lightly worn but aging set.

Jeep CJ6 uses several period-style sizes across this 1971 to 1978 range, including 7.35-15, E78-15, F78-15, H78-15, and later 600-16. The available products include classic bias-ply passenger-style tires as well as military and truck-oriented patterns, which reflects that more than one authentic-looking approach can exist within the broader CJ6 family. No single series covers every year and configuration in this span.

For restoration work, the best approach is to match the tire to the exact year, wheel diameter, and intended presentation of the Jeep CJ6. Factory literature, survivor vehicles, and marque-club knowledge help separate a civilian-style bias-ply restoration from a more utilitarian or military-influenced setup.

Correct tire fitment can materially affect how a Jeep CJ6 is viewed in restoration judging and by knowledgeable collectors. Size, wheel diameter, sidewall style, and tread character all influence whether the Jeep reads as authentically restored or merely usable. A 15-inch whitewall passenger-style look and a 16-inch military-style blackwall look can send very different historical signals.

That matters most when the Jeep CJ6 is being restored to a specific year and presentation rather than simply kept roadworthy. Buyers pursuing concours or marque-level authenticity should align the tire choice with the vehicle’s exact specification and use club expertise to avoid a visually plausible but historically mismatched combination.

Jeep CJ6 tire options in the listed products include blackwall, wide whitewall, and double-whitewall styles, but the correct choice depends on the restoration direction. Blackwalls are the most natural match for utility, truck, and military-style presentations, while whitewall treatments push the Jeep toward a more stylized civilian look. Not every size has the same sidewall spread available.

A serious Jeep CJ6 restoration should choose sidewall style only after the wheel diameter and size have been settled. Once that fitment is correct, the sidewall treatment becomes a finishing decision that should match the era impression, trim intent, and the way the Jeep is expected to be judged or displayed.

These Jeep CJ6 tires can be suitable for public-road use when they are the correct size, mounted on the correct rim diameter, properly inflated, and in sound condition. The available products are bias-ply designs, and some are military or truck-style tread patterns that drive differently from modern radial light-truck tires. That means road behavior may include more wandering, different braking feel, and stronger reaction to ruts or pavement seams.

Safe use depends on the complete vehicle, not the tire alone. A Jeep CJ6 should have its steering, suspension, brakes, wheels, and alignment checked before regular driving, and the driver should expect period-style handling rather than modern SUV behavior, especially with narrower bias-ply or nondirectional tread designs.

Before driving a Jeep CJ6, check tire inflation, visible sidewall condition, tread condition, wheel security, and whether all tires match the intended size and construction. On this model, wheel diameter is especially important because both 15-inch and 16-inch applications appear in the year range. It is also wise to inspect the spare, since older Jeeps often carry a mismatched emergency tire from a different era.

A short pre-drive walkaround catches the issues that most often interrupt hobby driving. On a Jeep CJ6, that means treating the tires as part of a broader mechanical review, particularly if the vehicle has sat for weeks or months or has recently returned to service after restoration.

A Jeep CJ6 on period-style bias-ply tires should be driven at conservative speeds that suit the design of both the tire and the vehicle. Even when the tires are new, the combination of vintage chassis geometry, short-trip hobby use, and bias-ply handling characteristics calls for moderation rather than sustained high-speed cruising. Military and utility tread patterns deserve the same cautious approach.

The practical standard is to drive a Jeep CJ6 at speeds that keep it stable, predictable, and comfortable rather than trying to force modern highway behavior from a classic setup. If the Jeep feels nervous, follows grooves, or shows vibration, reduce speed and inspect the tires, wheels, and chassis before continuing.