Lewis Posted December 6, 2014 Share Posted December 6, 2014 My mate is having some trouble with halfshafts since simultaneously shearing the drive flange bolts and short side rear halfshaft at the weekend His existing setup is maxidrive shafts and flanges with arb lockers and ashcroft cv's, the car is a 1997 90 300tdi. He has a new pair of late Ashcroft shafts to fit but now we've stripped it down they are too short. The maxidrive shafts which are being replaced measure the same as the early Ashcroft shafts which leads me to conclude that at some point early wide bearing hubs have been retrofitted to the 300tdi axles So how do we proceed? Options seem to be 1) change the hubs to later narrow bearing type, 2) sell the Ashcroft nsr (late) shafts and buy Ashcroft osr (early) shafts, or 3) buy the Ashcroft 859 drive flanges and hope that their reduced thickness allows enough spline engagement at the diff whilst still getting a circlip on the flange end Anyone have any advice or suggestions? Some pictures, just because everyone loves a picture Quote Link to comment Share on other sites More sharing options...
Daan Posted December 6, 2014 Share Posted December 6, 2014 the drive member on the left belongs to a wide, early hub. Option 1 and 2 will work, option 3 won't I think. My suggestion is option 2, as in my opinion, the wider hubs work better for running big wheels with big offset. I run this with genuine land rover drive members as the weak link in the drive train. Daan Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 6, 2014 Share Posted December 6, 2014 Option 3 won't work as the PCD of the holes is slightly different I believe. Quote Link to comment Share on other sites More sharing options...
Lewis Posted December 6, 2014 Author Share Posted December 6, 2014 Option 3 won't work as the PCD of the holes is slightly different I believe. I know that the one piece (mushroom) type halfshafts have a different pcd, I wasn't aware that the factory separate drive flanges had different pcd's Quote Link to comment Share on other sites More sharing options...
Team Idris Posted December 6, 2014 Share Posted December 6, 2014 Yes, imperial 3/8 unf is one PCD, and the metric another. The hole it fits into in the centre it is also different. They are close enough to drill them out and still have it fit, but that isn't ideal. (metric flange onto imperial hub). Quote Link to comment Share on other sites More sharing options...
Team Idris Posted December 6, 2014 Share Posted December 6, 2014 Ah, you mean mushroom is imperial and flange is metric? Sounds fair, I haven't looked into that, just aftermarket flanges to fit the two hub types. I was in a rush, so I bodged landy flanges onto my RRC rear axel. Quote Link to comment Share on other sites More sharing options...
missingsid Posted December 6, 2014 Share Posted December 6, 2014 Hi, This may not be as quick a response as on here but as the recurring theme here is Ashcrofts why not ask their advise as they will know the options? Marc Quote Link to comment Share on other sites More sharing options...
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