8 1/4 (8.25) 3.90 ring and pinion

Have a used but very good condition 8 1/4 (8.25) 3.90 gear ratio ring and pinion for sale. Was going to switch out my pickups 3.21 gears with this but went to 4.10 instead. Box does say 3.92 but just a mistake while writing. Asking 110 plus the ride. Thanks for looking.

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