My apologies for not making it. Managed to get the diff in but the bonnet refused to shut!! After 2 hours in the bodyshop realigning the bonnet it finally shut. By that point it would have been the late afternoon by the time i would have arrived.
To make things worse the re-rebuilt diff still whines!! Not as bad as before but still noticable. Time to name and shame Southern Axles in Watford
I've now decided to try and find a second hand diff but its like gold dust as mine is LSD.
And just as my day couln't get worse i realised the car doesn't get into my driveway! Need to raise it 1/2 inch to get it to clear the slope