Having progressed to the 'it's straightforward and you need not replace the (10 spline) drive shafts' stage of replacing the knocking rear diff on my 88 RRC I checked the number of studs in the diff flange - result? 3!
According to Paddock's rear axle page, 3 stud diffs match 24 spline drive shafts on much younger vehicles than mine (chassis 3EA343346). Perhaps the axle case has been replaced? But why keep the old innards of the diff??
I've done a bit of number searching:
On the axle 28852529B The '8's are a little indistinct and might be 'S's ?
On one side of the diff, in three lines: 1st line A 24FJ (the
24FJ is in a box) 2nd line ROVER 3rd line H (or R) RC 1124 Also a 'D' halfway towards the UJOn the opposite side of the diff: 1st line GF+L 2nd line 88 3rd line 420-12 (all but the 420-12 is very indistinct.
What the ??????
Front diff is also 3 nut/flange
TIA
Richard