Garrycol.....
My 101 is running a rear locker which I fitted.
The axles are 22 spline from memory and the axle diameter and drive flanges are much larger than any other rover.
The front cvs are special extra large too.
The only 101 I know of which broke a axle was running 20 inch Unimog wheel with oversize rubber.
The weak point is the the diff centres.
The 101 drivers book states the keep throttle setts low when using 1st and 2nd gears low range for this reason as the 78 to 1 low, low can produce a lot of torque.
Mac maccmara only made 10 diff locks for export and none others are advailable.
My machine is running a Detriot solf locker and I am very ,very pleased with it.
The constant 4wd means the front diff is driving too,so there are none of the draw backs of auto lockers and the camming of the solf locker is brillant too.
Auto lockers can not be fitted in the front .
I have worked out a way to fit a ARB air locker in a 101 with extra machining, so I am looking to do this to the front diff..........money stopping me at this time.
The locker in the rear made a terrific improvement off road as the the 1.5 tonne pay load of the 101 means it is no flex king.
My 101 plays with at the modern locked and lifted 4wds now.
In a nut shell the axles on the 101 is very good stuff and dont worry about then in any sort of use.
The very large axles mean fitting of a locker is harder.
Regards Ron

