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Reply to "Pinion Question"

FWIW, be careful of the ZF version made for the BMW M-1. Almost none of the internal bits interchange with a 'std' ZF 5DS-25/2. The shafts have larger ODs, the internal bearings & gears are larger so do not fit and the diff case section is externally changed. Halfshafts used CV joints rather than std U-joints. Supposedly stronger M-1 guts can be fitted to the earlier ZF cases by a skilled machinist, but I've never seen one so done. Again, because the M-1 ZF was a limited semi-racing/production sub-model, few spares exist and almost no one is an 'expert' with that ZF variant. I suspect most have had a far rougher life than the avg. Pantera ZF. Maybe someone at ZF in the Schwaebisch Gmuend Werks could give you more info, if you find one.
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