Originally Posted by o2batsea
Is it not true that a third from a D1/RRC will bolt into a series axle housing and be perfectly ok? Pedro and I were discussing this and I think it's a go. Am I wrong?
Not this time. My LR's front end currently has a Range Rover Classic housing installed.
If you use the wider 3.45:1 R&P or 4.75 R&P or 4.7:1 R&P with a RRC carrier, a locker or limited slip that requires a spacer plate you will need to grind the opening for the ring gear a little wider but that is it.
My front end is currently, SeriesTrek 24 spline axles, Trutac diff, 4.75:1 R&P on a RRC pumpkin in an early SII (not A) housing.
In the attached picture, the diff on the left is a RRC pumpkin, Trutrac 24 spline limited slip and 4.75:1 R&P.
Diff on right is a Series pumpkin, Quaife 10 spline limited slip, 4.7:1 R&P with spacer plate. Both fit in my SII axle housing after metal was ground off allowing the wider 4.75 ring gear or 4.7 Ring gear + spacer to pass through.