The 3Racing Aluminum Rear Differential Housing is engineered as a robust replacement for the Kyosho FW05-R and FW05RR rear casing. It is intended to provide a stiffer mounting environment for the differential assembly under race conditions.
An aluminium housing improves structural rigidity compared with standard material housings and helps with thermal dispersion from the diff area. This stability supports consistent diff behaviour during repeated runs and setup changes.
The housing is model specific to the FW05-R and FW05RR platforms and installs using standard RC workshop tools. When fitting, verify gear mesh and sealing to maintain expected diff performance and service life.