That has a screw on steel cap, hasn't it? My guess is it hit a rock or something similar pretty hard. The alternative is faulty heat treatment, although I suspect it is meant to be pretty hard to prevent spline wear.
Wondering if anyone else has experienced this failure mode in a drive flange, or knows what may have caused it? It was an incidental finding when I dismantled to service wheel bearings on the 130. Wasn't even leaking. Has not done much work, I replaced rear shafts and flanges a couple of years ago so had a set with worn splines to temporarily install. I've contacted Ashcrofts a couple of days ago to see if they can suggest a cause but no response yet.
flange failure 1.jpgflange failure 2.jpgflange failure 3.jpgflange failure 4.jpg
That has a screw on steel cap, hasn't it? My guess is it hit a rock or something similar pretty hard. The alternative is faulty heat treatment, although I suspect it is meant to be pretty hard to prevent spline wear.
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
Very similar in design to the MaxiDrive HD drive flange MD839X
Rear Heavy Duty Drive Flange Extended Spline - MDE859X
Or the FRC5806A HD drive flange
Heavy Duty Capped Drive Flange - FRC5806A
Ron B.
VK2OTC
2003 L322 Range Rover Vogue 4.4 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
RIP Bucko - Riding on Forever
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