# SuperPro 1990 Mazda Miata Base Rear Differential Mount Insert Bushing Kit

This kit replaces the forward differential mount bushings - known as the pinion mount bushings. The OEM units are soft rubber and break down fairly quickly with that wear accelerated the harder they are used. The worn bushings allow more movement of the rear differential under changing loads. This can initially be felt behind the wheel as slower and sloppier responsiveness, and as the OEM bushings near the end of their life or fair it can be accompanied by noise, vibration and secondary movements under changing loads - especially as you get on the gas and come back off of it. SuperPro's differential mount upgrades maintain OEM levels of noise, vibrations and harshness isolation in the cabin so your car maintains the new factory levels of comfort. At the same time performance is significantly improved with the differential more accurately located under a wider range of conditions and the service life dramatically improved with our materials maintaining peak performance throughout their life rather than slowly softening and degrading like natural rubber.

This Part Fits:

Year

Make

Model

Submodel

1999

Mazda

Miata

10th Anniversary

1990-1997,1999-2005

Mazda

Miata

Base

1993

Mazda

Miata

LE

2000-2005

Mazda

Miata

LS

1994-1997

Mazda

Miata

M Edition

2004-2005

Mazda

Miata

Mazdaspeed

1991,2000-2003

Mazda

Miata

SE

2003

Mazda

Miata

Shinsen

1997

Mazda

Miata

STO

## Details

- **Price:** 107.7 CAD
- **Vendor:** Superpro
- **Type:** Differential Bushings

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 107.70 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Close Up
- Photo - out of package
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/superpro-1990-mazda-miata-base-rear-differential-mount-insert-bushing-kit)
> Updated: 2026-07-14