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than you better have extra money for another r4 after it grenades....the price is not much different, do it right the first time,

if I was researching this and had no idea what trans too install and found that the factory/military uses a 4L80e, as well as the vast majority of HMMWV shops performing conversions too same, I would do you self a favor and stick with the 4L80e.

yes, this is the quickest and cheapest Route, there are many 3 speed from other folks conversions sitting in garages across America....I do a few 4 speed conversions a month.