some jags do have inboard discs (xjs comes to mind ) I would have thoiught swopping the parts isnt likely to work but maybe fitting the complete axle might.
I pick up this axle for £100 which i thought was quite good, and about a 3rd of the price iv seen the older inboard irs going for, it was just a thought as im gona be remaking the lower suspension arms so wondered how easy it would be to c onvert to inboard...
In that case, the choice is yours, but don't make extra work modifying an axle when you can buy one ready made. You will have enough work to do as it is
I need to modify the axle as I want to shorten the half shalts plus I'm remaking the lower arms so that there shorter and wider so that I don't need no trailing arms etc