3:55 / 10 spline gear set for 742 case

looking to buy a good set of 3:55 ring / pinion for a 742 case. We have a set of 3:91 to trade if interested. Willing to trade or buy trade entire pumkin (only 489 or 742 case w/ sure grip) if interested. Going to Butch Leal / Tulare Ca.....looking for more top end I guess.

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