Hi all. I have a diff for sale on eBay (well 2 actually). One of them is a cheap way of getting A LOT more pace out of your car as it's a 4.27:1 in a modified case so will be a straight replacement for your 7" push in shafts. It transformed my track day car.

https://www.ebay.co.uk/itm/134434866236?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=SQusPZU2Q-C&sssrc=2349624&ssuid=SQusPZU2Q-C &var=&widget_ver=artemis&media=COPY