BUY NOW on eBay: https://www.ebay.co.uk/usr/triumphstuff

HERE I HAVE FOR SALE.... A SHACKTUNE OVERDRIVE LOGIC BOX. TO SUIT ANY CAR RUNNING A LAYCOCK OVERDRIVE.This unit allows you to sequentially select gears and overdrive.Any Momentary switch can be used to acctuate the box. Comes with wiring schematic and instructions. THANKS...     TRIUMPHSTUFF...