10.25" axle differences pre-post 04/94

u2slow

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I'm looking at hub seals and bearings mainly. Is this also the short/long pinion crossover?

I have housings and parts ranging from 87-95 and not sure what's what amymore. What I'm seeing in the parts listing is the inner bearing changes from a 3994 to a 3992 in April 94; it gets 30 thou narrower. Race and seal seems to stay the same - correct?

What am I looking for on the hub and/or spindle to know what bearing to use?
 

u2slow

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Did some googling with those 2 bearing numbers and a couple of forum threads make it sound like there's a 0.030" slinger in the later hubs, which explains the thinner bearing. The hub and spindle are allegedly the same.

I've ordered the seals and early bearings. If I encounter a slinger in either of these hubs, I'll leave it out.
 

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