How to measure pinion bearing preload?
Ok, first of all I'm new to this forum so Hello to all! This place has been a gold mine of info for me and I've been lurking here for about 2 months now.
So here's my question. I have a late 99 F350 4WD crew cab short bed. The rear pinion seal is leaking and needs to be replaced. Following the rule of "search more, ask less" I have spent about an hour looking this up. I've found the used bearing preload range (8-15 inch pounds), but I can't figure for the life of me how to measure that with the carrier still installed. I've done ring and pinion installs, ARB air locker installs, but for some reason this is just not making sense. The only thing I can think to do is measure the torque required to spin the pinion before I pull the pinion nut and then match it when I install the new nut. Anyone have a better method? I hope I'm just having a stupid moment here and this is a lot more simple than I am making it.
Thanks!
Rich
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