This is the optional blue GH Racing Aluminum Lower Chassis Braces for the Traxxas E-Maxx/T-Maxx. This item is CNC machined from 6061-T6 aluminum and is anodized blue. It is designed to increase support for the front and rear differential bulkhead while protecting the drive train.
NOTE: This part fits the old E-Maxx part #3906, and will not work with the new style E-Maxx Part #3905. Also, this part is compatible with the standard Traxxas T-Maxx 2.5/3.3 models, and will not work with the extended chassis T-Maxx 3.3 #TRA4908.