d-90 Posted January 3, 2008 Share Posted January 3, 2008 Hi, Have ordered a new ARB locker, and instead of the usual RD56, I got a RD128.. Is it a redesign rover unit from ARB?! Quote Link to comment Share on other sites More sharing options...
white90 Posted January 3, 2008 Share Posted January 3, 2008 http://www.arbusa.com/alac/215109.pdf it would appear so Quote Link to comment Share on other sites More sharing options...
smo Posted January 3, 2008 Share Posted January 3, 2008 Its the new replacement for the RD56, not a huge change i gather, but alegedly stronger in places..... Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted September 7, 2010 Share Posted September 7, 2010 RD 128 - Not as good as RD56, the RD 128 we have seen can suffer from air leaks on the air in system some we have had calls immeaditely after being fitted in some cases IMVHO Your better off buying a secondhand RD56 24 spline unit than a new version, where they changed the air in system, do a search on forums make your own mind up http://forum.difflock.com/viewtopic.php?t=53331&sid=20d1c402dd19d7f43bd047e46f6232a2 http://forums.lr4x4.com/index.php?showtopic=39150 Nige Quote Link to comment Share on other sites More sharing options...
Mr Nick Posted September 7, 2010 Share Posted September 7, 2010 I run RD 128's and have never had any problems with them. Also have fitted a fare few into other vehicles without any problems. What i will say is if your not sure about building and fitting them dont do it !!! Be aware that you MUST use the TIMKEM type bearings ! Others do not fit corretly and will give you an air leak problem on the seal housing not sitting in the right place. Also you will need to do abit of grinding if using later diffs, only on one side of the diff to the bearing cap and Diff housing as its very near to the diff. RD56 is now discontinued ! got to move with the times I recommend Steve at Crown Diffs for anything to do with ARB's Quote Link to comment Share on other sites More sharing options...
Aragorn Posted September 8, 2010 Share Posted September 8, 2010 Old thread warning? Quote Link to comment Share on other sites More sharing options...
Mr Nick Posted September 9, 2010 Share Posted September 9, 2010 Ya right lol Quote Link to comment Share on other sites More sharing options...
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