Since you mentioned traction, I’d recommend adding a Trac-Lok unit to whatever axle you swap in... pushing with both tires has to be better than pushing with only one...
An Explorer axle would swap in too (free axle flip)but I don’t think they come in a tall enough gear to make a difference... most people go for the 3L73 axles, with disc brakes... and you already have 3.73 gears as is
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My current Ecotec project...
My last Ecotec project...
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