Sorry, you need to pull the diff, fit pot joint output shafts to it, then reassemble.
Check the diff pin and spider gears too, replace them if worn bad.
Or, you can fit the whole rodchange diff straight in, but if you do the drive pinion needs to be changed. Rodchange is usually 3.44:1, and your 1098 & remote is probably 3.647:1.
An alternative is to fit a pair of QL5000 joints if you can find them. These are a direct replacement for the rubber unis.
pic credit to Timmy201...

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
