For what purpose is this? I can see it helping to avoid stalling on trails when crawling. It will hurt acceleration period as you are now putting energy into the flywheel that could be going into the truck's forward momentum. Since energy is conserved, any time you add mass or intertia, you take the finite amount of energy the engine can produce and put it to other things. The result is less forward momentum for a given amount of work done by the motor.

Seems to me like if trail duty is the goal, gears are the way to go.

Frank.

1994 4runner, 3.0, auto, 4.88's, 31's, BJ spacers, Coil spacers, air shocks, D-ring anchors, 4Crawler F/R swaybar discos.
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