Oh Pete, You do have a job ahead of you.
As you have been told, there are two bolts holding the caliper on the diff center.
Unfortunately, they are vertical ( ie one above the other) about 100mm apart. Whats worse is that they enter from the diff side ( ie the inside)
They go thru the caliper and into an ear on the diff/axlel bearing retainer. Whats worse, is that they will have some wire thru the heads to prevent unwinding. ( or should have)
How much access you have on the DRB is anyone's guess but certainly on the RMC it is near impossible to do the job with the diff in the car.
Maybe it's best to drop the diff. This sounds drastic but may be an easier job than trying to get the calipers off whilst in the car.
The diff is held in the chassis by 4 bolts on top of the pumpkin. The shockies as you know is only remove the top mounting pin. Trailing arms I'm not sure about with the DRB. Apart from hydraulic lines etc thats all there is to remove it.
Drop it out and do a good job..while your at it....get vented rotors from Don pilling and closely inspect the diff seals...specially the axle bearing seals..the heat from the calipers tends to prematurely stuff them.
Now you know why uncle Les is taking so much time to finish his build......he has been there...done that and now has a removable section of boot floor to provide access for just this very problem.
Maybe some of the DRB folks can help further but this is my experience Pete....sorry
