Aftermarket 2nd 2.48 with 5.42 r&p engine turns 13.44 per 1 tire rotation.
Stock 1st 3.78 with 4.57 engine turns 17.27 turns per 1 tire rotation.
Stock 1st with 4.86 r&p turns 18.37 turns per 1 tire rotation.
Stock 2nd with 4.86 turns 10.11 turns per 1 tire rotation.
So, my opinion is stay stock unless you want to build a 2nd gear 5.42 with aftermarket 1&2 which will cost near $1600 in parts alone.
I hope my math is correct, I've had a few tonite.
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