Traxxas chassis for the Revo 2.5 is constructed of 6061 T-6 aluminum, anodized blue in color 1.2" (30mm) longer than Revo 2.5 chassis
If converting a 2.5 Revo to this extended length chassis, the following parts are required;
#5341 Steering Linkage REVO 3.3
#5456 Center Half Shafts
#5361 Revo Chassis Brace
Length: 16.6" (422mm) Width: 6.2" (159mm) at widest point Thickness: 1/8" (3mm)