Will, I'm pretty sure the standard castor blocks are 10 degrees and the white front bulkhead is also 10 deg (I think the earlier cars may have been less but sadly, I missed most of the XX4's heyday as I was out of the game back then)
There were some alternatives developed for the Street Weapon TC that gave the ability to run with either +3 or -3 deg caster depending on which way you fitted them. They are discontinued items but you might be able to find them at some stockists - part number LOSA9732
Hope this helps.
|