ESR Gusseted Rear Differential Case/Housing

After breaking several of these and finding myself parked on the side of the track and missing the entire race, we decided to start offering these to our customers as well. If you have not experienced this yet, you will at some point. Don't let this ruin your weekend. A hard bump draft or stacking up at the start off a race and getting hit in the rear usually results in a broken diff housing. We have all seen this happen many times. We started gusseting these diff housings with 1/4 aluminum plate cut on the CNC. We don't start with a broken housing as most do and weld. We start with a good virgin housing that has not already failed. The cost of this part is less than what you will lose in entry fees of one race the first time it happens.

Vehicle Applications:

• 1990-2005 Mazda Miata 1.6L & 1.8L NA6, NA8, NB1, & NB2