Energy Suspension 70-78 Nissan 240Z/260Z/280Z Red Differential Carrier (Mustache Bar) Bushings

When you're working on the rear end of your 1970-1973 Nissan 240Z, replacing the differential carrier bushings, often called mustache bar bushings, is a common task. These bushings are critical for properly locating and supporting the differential, and worn-out rubber ones can lead to sloppy handling and noise. Energy Suspension's set is made from their proprietary Hyper-Flex polyurethane, which is known for being a well-built material that holds up well over time.

This kit uses a red, firmer polyurethane compound compared to stock rubber. This means it will offer more direct support for the differential, helping to reduce unwanted movement under acceleration and deceleration. While it's a bit stiffer than the original rubber, it's designed to provide a noticeable improvement in how the rear suspension feels and responds, especially if your original bushings are cracked or compressed.

Installing these will require removing the old, likely deteriorated, rubber bushings and pressing in the new polyurethane ones. It's a good idea to have a press or a suitable tool to get them seated properly. Once installed, you should notice a more connected feel from the rear of your Z car.