not quite steve, that was the last set of axles that cost us a 5th place finish at KOV in 2012, they were sacked off before 2013.....
id recomend the d2 axles to anyone, I havent bigged them up on here incase i offend any armchair offroaders or serious competitors, i wouldnt want to say they will be reliable with 40's, hell so far been reliable with 37" stickys but even then i do strip & check them after each outing, so thats a maybe,
the benefits of the d2 axles are Aftermarket HD cv's are huge in comparision to disco 1 hd cv's, track is wider allowing a less offset wheel to give better steering geometry
they take a standard LR diff, so if you have D1 axles, the diff goes straight into a D2 axle,
super easy to convert to full hydro steer with a highsteer option, although they have a unit wheelbearing, which can be expensive (£100+) they are super simple to work on, can have both axles stripped with shafts, cv's Hubs & diffs out faster than i could do one axle on a D1,