SuperPro 1990 Mazda Miata Base Rear Differential Mount Insert Bushing Kit (sprSPF2875K)

This is the SuperPro 1990 Mazda Miata Base Rear Differential Mount Insert Bushing Kit. Part sprSPF2875K. Stiffer engine, transmission and differential mounts reduce drivetrain movement for sharper throttle and shift response.

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.

Product details

• Part type: Engine & Transmission Mounts
• Brand: SuperPro
• Installation Difficulty: Difficult
• Installation Time (hrs): 3
• Kit Contents: 4 Bushings
• Wheel Alignment Required: Yes
• SuperPro part number: sprSPF2875K

Fitment

• Vehicle: Mazda Miata MX-5 (NA), Mazda Miata MX-5 (NB)
• Years and trims on file: 1999 Mazda Miata 10th Anniversary; 1990-1993 Mazda Miata Base; 1994-1997 Mazda Miata Base; 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 Mazda Miata SE; 2000-2003 Mazda Miata SE; 2003 Mazda Miata Shinsen; 1997 Mazda Miata STO
• Application listing: SuperPro 1990 Mazda Miata Base Rear Differential Mount Insert Bushing Kit
• Check the vehicle, model years, engine and trim above against your car before ordering. Not sure? Ask us and we will check it against your VIN.

Shipping & returns

• Orders are processed within 1–3 business days; standard delivery is 3–7 business days within the United States.
• SuperPro parts are supplied through our distributor. We confirm availability and lead time with you after you order.
• We currently ship within the U.S. only. See our Shipping Policy.
• 30-day returns on unused parts in original packaging — see our Return Policy.

Installation at Team ANBD

Team ANBD is a performance shop in Andover, New Jersey. We can align or corner-balance the car, and prep track cars. Book an appointment or ask us about installation and fitment before you order.