Its amazing what gets dug up after all this time. I was lucky enough to be given some copies of the FFD data sheets relating to two of the 4 wheel drive Stags, copies of which follow, the project numbers match the build card records that I was given some time ago.
Sadly my estate's records were not to be found. But these detail most of the modifications, part numbers of the GKN joints, fluid capacities (in imperial) and types. Camber, caster angles etc, and the increased weights of the vehicles, and the need to increase the front tyre pressures by 2 lbs.
Interestingly the Stags were fitted with 3.7 diffs, the estate has a 3.45.
It also reveals a weight increase of 244lbs
Really interesting documents.