Thread: D1 Rear Locker in front Defender TD5

24 spline rover diff is the same in the front of your Defender as both ends of the Discovery from about 1994, so your air leaker should be a straight swap. As to whether you 'need' stronger axles and CVs, that's up to you- of course you are more likely to break one with a locker than without. I upgraded all the drive components on my 130 when fitting lockers, mainly because we were planning some remote touring and also do a lot of solo 4wd trips. Might not have worried so much if we were always within reach of assistance. I guess carrying a spare stock CV is an option.
The Ashcroft CV joints are a softer but tougher material than the stock CVs, I'm no metallurgist but I guess they are not as brittle.

Thank you very much POD,
I had a good feeling that it was the same, but needed some god advice before i strip it all down.

I think I might try and get some HD CVs