a few weeks ago, i welded up the 7.5" diff on the back of this (thanks to paddy for the photo )



diff now looks like this inside.



well i took it out for the 1st time since doing it last night to the Berks meet so was a little anxious as to how it would drive and if it could survive some abuse

but i needn't have worried as it's excellent you feel it during low speed tight turns as the inside wheel kind of grabs and you need more power to move as the tyres scrubs across the road but that's a small percentage of driving time.

but it's mostly good things. you get excellent grip from a standing start, whether in a straight line traffic light grand prix or sliding sideways out of a t-junction, and superb grip in corners and roundabouts with no hint of it increasing a tendency to understeer.

i've yet to see how it affects tyre wear, but so far i have only seen positives from doing it and like steve says i wish i had done it years ago.