What do these numbers mean. They are on a 10 bolt.
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What do these numbers mean. They are on a 10 bolt.
Those are casting numbers, identifying the foundry location and approximate date that the housing was cast. All of the critical information about your rear gears would be on a sheet metal tag, nominal 1/2" x 3" held in place under one of the bolts securing the gears/cover.
".....All of the critical information about your rear gears would be on a sheet metal tag, nominal 1/2" x 3" held in place under one of the bolts securing the gears/cover....."
That's true for some rear ends Roger provided you're lucky enough for the tag to still be there.
On a lot of the GM and Mopar rear ends the gear ratio and application data is stamped on one of the axle tubes.....in very small font and usually a PIA to find and read.
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