Polyurethane Differential Bushes For Mazda MX-5
From: £29.17 Select options

Polyurethane Differential Bushes For Mazda MX-5

From: £29.17

Reduce PPF fatiguing axle hop with PU bushes

(3 customer reviews)

Available in Blue for 70a, Black for 80a and Red for 95a

Polyurethane Differential Bushes For Mazda MX-5. Over time the bushes in the differential soften, reducing throttle response as the drivetrain twists and absorbs torque. Axle hop occurs as the bushes deflect on the mounts, rocking the differential backwards and forwards as the tyre grips, slips and grips again.

Replace worn rubber diff mounts with polyurethane and put the stiffness back into the rear of your MX-5 permanently.

Sold as a complete set.

Available in three hardnesses:

70A – Road/Track – Daily driver friendly but also 300WHP trackday friendly, if you daily your car use these.

80A – Track day – Feisty Road Use and Trackday car.

95A* – Race – Literally, for racecars, they will rattle your teeth!

Package Contains

  • 4 x Differential Mount Halves
  • 2 x Crush Tubes

Additional information

Weight 0.8 kg
Dimensions 18 × 18 × 7 cm



70A (Road), 80A (Track), 95A (Race)

3 reviews for Polyurethane Differential Bushes For Mazda MX-5

  1. Tim S (verified owner)

    Bought these to try to reduce wheel hop with old bushes and SuperPro Void fillers. These seem high quality and installed nicely.

    The wheel hop wasn’t eliminated (compared to void fillers), but was slightly reduced. There was a very small NVH trade off.

    Would recommend, especially if your diff is out the car already.

  2. Paul S (verified owner)

    Bought a set of the differential bushes whilst fitting a 4.625 crownwheel and pinion into my 1.8L NA car. Feels like a noticeable improvement in location and the gear change was improved further after previously replacing the engine mounting rubbers also.

    With the whole engine, and transmission being mounted to the car at 4 points, it seems the MX5 is particularly sensitive to wear in these bushes. Very worthwhile upgrade and excellent service as ever from the guys at Bofi.

  3. Julius T (verified owner)

    Haven’t installed them yet, but seems like good quality. Got a piece of candy tho

    • Daniel Marshall

      “Oooo! A piece of candy!”

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Make Model Year
Mazda MX-5 1989 - 2005