If you look at the name plate in the engine bay the trans axle listing gives the transmission type and then the following codes for the axle assembly.
HA =H150, HB = H150A, HC = H165B,

HD = H190 Aluminium carrier with either 24 diam 23 spline or 30 diam 29 spline side gears,

HE= H190 ML cast iron carrier,

HF = H190A ML cast iron carrier RE-INFORCED!

HG n= H233B, RA R160,RB =R180, RC = R200, CA = C200, CB = C216

After the Numbers the next two numbers give the diff ratio.
EG HC 39 = H165B centre with 3.8889 ration

HD 43 = Alloy carrier H190 with 4.375 ratio (May have 23 spline or 29 spline axles.

Hope that helps.