T-Works T4 & BD9 anti-tweak block
T-Works have introduced a new 18mm/19mm anti-tweak block for the Xray T4 and Yokomo BD9 touring cars. Machined from aluminium and coming red, black or orange anodised the blocks help to build tweak-free front and rear bulkhead assemblies. With the lower bulkhead screws not fully tightened the block are inserted between the left and right bulkhead and while pressing the bulkhead halves against the block the screws will be tightened to ensure a fully parallel assembly that both counters uneven chassis tweak while ensuring less stress for the spool and differential bearings.
Source: T-Works [rc-tworks.com]