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So, basically it's ok to set pinion bearing preload first??? It just seems bass ackwards to set everything else first, then take it apart to set pinion bearing preload, only to reinstall the carrier and re-set the backlash/carrier bearing preload with the spinning adjusters. ya know???



The problem with the 489 is because the crush sleeve goes in from the pinion head end and the crush sleeve is a one time use part. The factory uses different tools to set the gears that basically tell the assembler what shim to use and it's pretty much spot on best I can figure.

The 741 and 742 shims and stuff go in from the yoke end so it's not such a big deal.