Hi Tony,
I can give you the specification for the axles on the Foden Recovery,
Front axles; GKN 10 ton hypoid steer drive SD66 with cross axle diff lock.
Rear bogie axles; GKN 20 ton hypoid type D66 with lockable inter axle diff and cross axle diff locks on each axle. Epicyclic hub reduction
the above is from the sales brochure, but on looking at the army workshop manual, slight change in details;
Front axle; Kirkstall SD65
Rear axles; Kirkstall D65
all rated at 10 tonnes, which means the brochure was stating 20 tonnes per bogie and not each axle.
Front axle weight 8.8 tons
Centre axle weight 8.8 tons
Rear axle weight 9.4 tons
total vehicle weight 27 tons
with folding EKA boom in retracted postion, a max suspended/supported load for towing of 8 tons.
It is some few years since I was involved with these vehicles now, so I am only stating details as known at the time.
more from the sales brochure;
Designed chassis ratings
Front axle 10,160 kgs
Rear bogie 20,320 kgs
GVW 30,480 kgs