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SuperPro 1990 Mazda Miata Base Rear Upper Control Arm & Outer Bushing Kit, manufacturer part number SPF1991K, is a new SuperPro bushing kits product selected by the verified year, make, and model records below. Confirm the mounting position, dimensions, bar diameter where applicable, included components, and every current manufacturer application note before ordering.
Key Features
- The SPF1991K is a SuperPro polyurethane bushing kit that replaces the rear upper control arm bushings at the inner and outer positions on the 1990-1997 Mazda Miata.
- Common symptoms include vague or unpredictable rear end feel, clunking over bumps, and uneven rear tire wear.
- Yes, the SPF1991K includes bushings for both the inner and outer positions of the rear upper control arm.
- Yes, replacing worn rubber bushings with polyurethane reduces unwanted suspension deflection and improves consistency during hard cornering.
- The SuperPro SPF1991K replaces the rear upper control arm bushings at both the inner and outer positions with polyurethane, bringing back the tight, predictable rear end feel the car was designed to deliver.
- Yes, the SPF1991K is designed to fit directly into the factory rear upper control arm mounting locations.
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 1990-1997 | Mazda | Miata | Confirm position, dimensions, drivetrain, suspension, and exclusions |
Specifications
| Brand | SuperPro |
|---|---|
| Manufacturer Part Number | SPF1991K |
| Product Type | Bushing Kits |
| Position | Rear |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new SuperPro bushing kits package identified by manufacturer part number SPF1991K, including only the bushings, sleeves, brackets, lubricant, fasteners, and other hardware expressly supplied in the sealed manufacturer package.
About SuperPro
SuperPro engineers polyurethane suspension bushings, control arms, sway bars, end links, alignment components, and related chassis products for street, performance, and off-road applications.
Related SuperPro Products
- Shop all SuperPro products
- SuperPro 1993 Toyota Supra Twin Turbo Front Lower Inner Forward Control Arm Bushing Kit
- SuperPro 1993 Toyota Supra Twin Turbo Front Lower Inner Rearward Control Arm Bushing Kit
- SuperPro 2006 Subaru Impreza 2.5i Steering Rack and Pinion Mount Bushing Kit
Frequently Asked Questions
How do I confirm SuperPro SPF1991K fits my vehicle?
Match the exact year, make, and model where listed, then verify the mounting position, component dimensions, suspension configuration, drivetrain, and every manufacturer qualifier.
Are similar SuperPro bushings interchangeable with SPF1991K?
No. Outside diameter, inside diameter, installed width, sleeve size, bracket geometry, bar diameter, and position can differ even when parts look alike.
What should be checked after installing SuperPro SPF1991K?
Confirm fastener torque, component seating, full suspension travel, steering and driveline clearance, and any required wheel alignment. Reinspect the installation after the initial settling period.
Installation
Follow the current SuperPro instructions and the vehicle service procedure for this exact part number. Support the vehicle safely, compare all supplied parts before disassembly, lubricate only the specified surfaces, torque hardware in the required suspension position, verify full travel and clearance, and complete any required alignment and post-installation inspection.
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