The only way to know for sure is to pull the cover and either count the teeth or simply find the tooth counts stamped on the edge of the ring gear. My guess would be that it has 4.10's or possible lower. Have you pulled the cover on your truck's differential to see exactly what you have now?
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Originally Posted by MichaelNicholas
I'm going to start with a rearend swap since that's on the list anyway. Found a 14 bolt Chevy that came out of a " heavy 30". The guy says it was a ramp truck, but doesn't know what gears are in it. I've searched and haven't come up with anything yet. Anyone familiar with this rearend?
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