IIRC the hummer h2 or h3 come with 4.56's and 33's from the factory and they don't have
any trouble with it.

 

i plan on getting 4.56 gears and installing them down the road i am apprenicing for heavy duty mechanics so i will have the no how haha also im going to get a pos-lock for my front axle and detroit tru trac lockers front and rear im getting a new engine now cause i blew mine up, and the tranny is months old haha no point in stoppin now

 

all the new Power Wagons come with 4.56s and 33s as well

 

But also come with an extra gear or two to keep the rpm's down

 

Not entirely true. The 545rfe transmission has two overdrive gears with the second overdrive
having a 0.67:1 ratio. Our transmission has an overdrive gear with a 0.69:1 ratio. Not much
difference.

 

Still gives them around 70 rpm -ish difference between the trucks. I agree not much but still is a notable difference.