The early to mid-1970s saw the last of the truly full-size Oldsmobile Delta 88s, a model that Olds built for five decades (1949-1999). The seventh-generation Delta 88 rode on a 124 inch wheelbase under the GM B-Body, offered a long, sculpted design and spacious interior, and featured standard equipment that included vinyl or cloth upholstery, power front disc brakes, and “flo-thru” ventilation.
Moving up from the base Delta 88 were the Custom and Royale series. The Custom mainly added power steering, while the Royale could be had with leather upholstery, a vinyl-covered roof, deluxe steering wheel, and special paint package. The Royale was available as a two-door hardtop or two-door convertible, which came with a power top.
By 1974, the car's standard 350 cu-in engine got a boost to 180 horsepower, and that continued through 1975.
Collectors shopping this era of Oldsmobile Delta 88 will want to seek out the Royale line, with its enhanced comfort. Convertibles are especially attractive, mostly due to rarity. Of the 118,082 Delta 88 models built for 1975, only 7,181 were Royale convertibles.
Highlights
• Powered by a 350 cu-in V8 rated at 170 horsepower and 275 lb-ft torque
• Finished in Cameo White paint over White leather upholstery and black vinyl dash
• Power-operated White soft top
• Power steering
• Power brakes (front disc)
• Power windows
• Power door locks
• Power driver's seat
• Power trunk-lid release
• Deluxe chrome wheel covers
• Cooper Trendsetter SE P235/75R15
• The chassis number (3N67K5X114975) decodes as:
o 3 – Oldsmobile
o N – Delta Royale
o 67 – Convertible
o K – 350 V8 4 BBL engine
o 5 – 1975 model year
o X – Fairfax (Kansas) assembly plant
Features
• Two-door, RWD convertible
• Three-speed automatic transmission
• Leather-wrapped, tilt steering wheel
• French Walnut woodgrain applique trim
• Air conditioning
• Cruise control
• Push-button AM/FM radio
• Analog clock (no longer works)
• Lighted vanity mirror
• Cigar/cigarette lighter
• Lighted ashtray
• Interior-operated hood release
• Cut-pile carpeting
• Front seat center arm rest
• Five seat belts
• Rear window defogger
• Limited-slip differential
• 15 inch steel wheels
• Headlight on warning system
• Pulse windshield wiper system
• Lincoln hood ornament with Mark IV grille badge
• Wheelbase: 124.0 inches
• Overall length: 226.9 inches
• Weight: 4,600 pounds
Known Imperfections
• Vehicle features a rebuilt title
• Buzzer stays on when door is open
• Expected light corrosion on underside
• White soft top shows some wear from folding/unfolding
• Discoloration/wear on door arm rests and inside door latches
• Wear on black vinyl dash (near climate controls)
• Scuffs on rear seat
• Discoloration/wear on backside of driver's seat
Included
• Spare tire
• Jack
• Convertible top cover
• New car cover
Ownership History
The current owner of this 1975 Oldsmobile Delta 88 Royale purchased it in 2022.
For additional details including more topside pictures and undercarriage pictures call 912-355-4563 or email jfmcsav@gmail.com