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Support and isolate the coil spring at the listed mounting location with this exact polyurethane component configuration. Select Prothane part 7-1706-BL by its dimensions, location, color, included components, and verified vehicle application before ordering.
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 1971-1973 | Buick | Centurion | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1973-1987 | Buick | Century | Custom, Indianapolis 500 Pace Car, Limited, Luxus, Olympia Limited, Special, Sport, T-Type |
| 1965-1984 | Buick | Electra | 225, 225 Custom, 225 Limited, Custom, Limited, Park Avenue |
| 1965-1984 | Buick | LeSabre | Custom, Custom Sport, Limited, Limited Edition F/E, Luxus, Sport |
| 1973-1987 | Buick | Regal | Grand National, Limited, Limited Turbo, Sport, SR, T-Type |
| 1966-1978 | Buick | Riviera | Gran Sport, GS, LXXV Anniversary Edition, Sport, SR |
| 1967-1972 | Buick | Skylark | 350, Custom |
| 1965-1970 | Buick | Wildcat | Custom, Deluxe, Gran Sport |
| 1971-1975 | Chevrolet | Bel Air | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1971-1972 | Chevrolet | Biscayne | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1971-1990 | Chevrolet | Caprice | Classic, Classic Brougham, Classic Estate, Classic Landau, Classic LS Brougham, Classic Sport |
| 1967-1973 | Chevrolet | Chevelle | 300, 300 Deluxe, Concours, Deluxe, Malibu, SS |
| 1967-1987 | Chevrolet | El Camino | Classic, Conquista, Custom, Royal Knight, SS |
| 1971-1985 | Chevrolet | Impala | Custom, Custom Landau, Estate, Landau, S, Sport |
| 1970-1988 | Chevrolet | Monte Carlo | CL, Landau, LS, S, Sport, SS |
| 1967-1971 | Oldsmobile | 442 | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1966-1984 | Oldsmobile | 98 | Holiday, Luxury, Regency, Regency Brougham |
| 1967-1977 | Oldsmobile | Cutlass | 442, Brougham, Colonnade, Colonnade S, Cruiser, Holiday, LS, S |
| 1980-1981 | Oldsmobile | Cutlass | 442, Brougham, Colonnade, Colonnade S, Cruiser, Holiday, LS, S |
| 1978-1984 | Oldsmobile | Cutlass Calais | GT, Hurst, International, SL |
| 1988 | Oldsmobile | Cutlass Calais | GT, Hurst, International, SL |
| 1982-1988 | Oldsmobile | Cutlass Ciera | Brougham, ES, GT, Holiday, International, LS, S, SL |
| 1975-1980 | Oldsmobile | Cutlass Salon | 442, Brougham, Hurst |
| 1985-1987 | Oldsmobile | Cutlass Salon | 442, Brougham, Hurst |
| 1967-1988 | Oldsmobile | Cutlass Supreme | 442, Brougham, Classic, Classic Brougham, Colonnade, Hurst, Indy 500 Pace Car, International, LS, SL |
| 1976 | Oldsmobile | Cutlass Tiara | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1967-1968 | Oldsmobile | Delmont 88 | Holiday |
| 1966-1984 | Oldsmobile | Delta 88 | Custom, Holiday, Royale, Royale Brougham, Royale Brougham LS |
| 1966 | Oldsmobile | Dynamic 88 | Holiday |
| 1967-1972 | Oldsmobile | F85 | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1966 | Oldsmobile | Jetstar 88 | Holiday |
| 1966 | Oldsmobile | Starfire | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1971-1978 | Oldsmobile | Toronado | Brougham, Custom, XS, XSR |
| 1967-1986 | Pontiac | Bonneville | Brougham, LE, Safari |
| 1967-1981 | Pontiac | Catalina | Brougham, Safari, Ventura |
| 1967-1973 | Pontiac | GTO | The Judge |
| 1973-1975 | Pontiac | Grand Am | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1978-1980 | Pontiac | Grand Am | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1975-1981 | Pontiac | Grand LeMans | Confirm trim, drivetrain, body style, mounting position, and dimensions |
| 1967-1988 | Pontiac | Grand Prix | Brougham, LE, LJ, SE, SJ |
| 1971-1975 | Pontiac | Grandville | Brougham |
| 1967-1981 | Pontiac | LeMans | Aerocoupe, Aerocoupe YL, Luxury, Safari, Safari Luxury, SE, Sport, T37, Value Leader |
| 1988 | Pontiac | LeMans | Aerocoupe, Aerocoupe YL, Luxury, Safari, Safari Luxury, SE, Sport, T37, Value Leader |
| 1967-1970 | Pontiac | Tempest | Custom, Safari |
Specifications
| Brand | Prothane |
|---|---|
| Manufacturer Part Number | 7-1706-BL |
| Product Type | Spring Insulators |
| Position | Rear |
| Color | Black |
| Size or Configuration | Exact part-number configuration |
| Fitment Type | Vehicle Specific |
| Condition | New |
| GTIN | 636169063275 |
What's Included
The exact Prothane spring insulators package identified by manufacturer part number 7-1706-BL, including only the bushings, sleeves, washers, brackets, lubricant, and hardware expressly supplied in the sealed manufacturer package.
About Prothane
Prothane manufactures application-focused polyurethane suspension, chassis, steering, engine-mount, driveline, and service components. Correct selection depends on the exact part number, vehicle application, dimensions, mounting location, and current manufacturer instructions.
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Frequently Asked Questions
Will Prothane 7-1706-BL fit my Buick Centurion?
Use the year, make, and model table above, then confirm every trim, drivetrain, body style, suspension, mounting-position, and dimensional qualifier. A model match alone is not enough.
What should I verify before installing Prothane 7-1706-BL?
Confirm spring diameter, installed height, upper or lower position, suspension travel, seating surface, and clearance at full compression and extension.
Should the fasteners be rechecked after installing Prothane 7-1706-BL?
Yes. Follow the current Prothane and vehicle service instructions for torque procedure, suspension loading position, alignment, clearance checks, and the required post-installation inspection.
Installation
Follow the current Prothane instructions for part 7-1706-BL and the vehicle service procedure. Support the vehicle safely, compare every supplied component before disassembly, clean and inspect each mounting surface, use only specified lubricant and hardware, torque fasteners in the required loaded or unloaded position, confirm full travel and clearance, then complete any required alignment and post-installation recheck.
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