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Polyurethane Differential Bushing Insert Kit for NA and NB

Polyurethane Differential Bushing Insert Kit for NA and NB

Regular price $54.99 USD
Regular price Sale price $54.99 USD
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Description

The differential is mounted in the car with some surprisingly flexible rubber bushings. Replacing these with stiffer bushings will cut down on differential movement, but they're a headache to install. Looking for an easy answer? Enter these bushing inserts. These inserts, made by SuperPro, fill in the voids in the stock bushings to minimize the movement of the differential - this actually makes your shifting more precise due to the way the Miata's drivetrain is mounted. They're a pretty easy install, as you just have to lower the differential enough to get it off the studs in the subframe, slip the smaller part into place, then put the bottom piece in place. With full replacement bushings, you need to remove the differential altogether then remove the stock bushings (which typically requires fire. Seriously.). A definite plus for competition cars - you don't want to hit 5th instead of 3rd in the heat of competition!

Bushing inserts fit 1990-2005 only.

Instructions

Shipping

Ships free in the US.
Details

There are no shipping restrictions on this item.

What does it fit?

Emissions

Emissions do not apply.

Warranty

lifetime

SKU

13-98101

Customer Reviews

Based on 12 reviews
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S
Steell336
Easy project reasonable price.

These bushing insert were a breeze to install. After supporting the differential, and loosening the subframe brace, all I had to do was remove the 3 nuts (each side) holding up the diff. Used a 2x2 board to leverage the muffler down for the drivers side upper spacer install, passenger side was no issue. 40 minute job including putting my car on jacks. I would recommend these. My low mileage nb shifts like new again with no harshness.

K
Kai
Well Worth It

Pretty easy installation, I had to remove the diff main stud nuts, lower bushing mount, rear section of exhaust, and rear subframe brace - 2 hour install. Signficantly improved driving experience, not overly harsh either. Actually, I barely noticed any vibrations or roughness. Adds a good big of rigidity to the driveline. Well worth it.

E
Evan S.

these are grrrreat!! fast & easy install!!

K
Keith W.

This reduced the excessive play in the drive train and seems to make the car feel more planted.

K
Keith W.
Very happy

I am very happy with the results of installing this easy to install bushing insert kit. The car just feels more settled to me. Great value for little money.