I was told by a mechanic that the EB series one manuals had problems with the clutch pushing on the crankshaft and wearing out bearings quickly
What it is, is that the EA-EB boxes used a tapered needle bearing between the mainshaft and input shaft. This was apparently later changed to a one-piece roller bearing. What was happening was that poor oiling was causing excessive wear on the mainshaft. It was still not a major issue, just when the box bearings wear out the mainshaft has to be resleeved. The one-piece bearing restricted the wear solely to the bearing instead, but the oiling problem was never fixed.
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
Lowered King springs
5 speed manual
Newest mod: EF Ghia wiring loom and dash