With over 600 BHP being delivered to the start-line tarmac via some of the softest compound tyres available does put probably the ultimate stress through any driveshaft. Brand Engineering manufactured these shafts for Jack in S155/300M for strength, the shafts where gun-drilled to reduce weight and then as with all shafts produced by Brand they where heat-treated and straightened before been ‘Blackend’ to provide protection again rust..