Reply to "Kurt Busch Pantera build"

The RBT six is about and 1.5" longer than the 5 speed, so requires some chassis/mounting modification to fit. The gears available are the same as the 5 speed, so you end up spreading the same ratios over 6 shifts rather than 5. IMO even with with the tall 5th installed there isn't a big rpm drop on the 5 speed that warrants another gear.
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