All this torque not enough action!
I suppose the way i see it (am gearing to 4.88's NOW) is that my tj with 32's - with some - ahem- perf mods will poke along in 5th on the flat with 3.07's and the motor labouring well below the peak of the torque curve - as such fuel consumption goes up and i go slow.....
The amount of load on the drive train being the same? wtf? your kidding right - unless your going to be generating max load at all times? surely you find 1st gear has more stick than 3rd right? if so then how is that any different to lower gearing?....
Maybe i'm a but biased, but maybe i've also done mechnaical engineering
.... so in terms of generating loading on the drivetrain, IMHO you would never generate the same load on from the diff's inward (driveshaft to transfer case to gearbox) with lower gearing.
Actually - I'll get my mate Sir Issac to explain
The amount of torque on the driveline is directly proportional to the load, lower gearing reduces the load.
And when using engine braking, the beauty is that you win again! remember that 4.88's load the drive line under engine braking at ~20% of the tortional load whereas 3.08's load at ~32%.
Using real numbers - torque at rear wheel of say 100 NM becomes:
with 3.07's ~ 32 NM
with 4.88's ~ 20 NM
Hey - it's seems my dark secret past of being a geek before I became a nerd
is out.
Having said all that - fit a thumpin 360 and stop friggin around with gearing - just get more cubes baby!