3.45 Diff Gears

[VS-S-PACK-UTE]

Hi, just a quick question, will putting 3.45 gears into my diff increase the rpm too drastically for it to be able to cruise along the freeway at 100 and not be revving hard. As it is at the moment its up close to 2200 in fifth what sort of rpm will it rise?

[kniever]

my 5 speed vn with 3.45 gears sits at about 1800rpm in 5th gear at 100km

[con7502003]

have a look on wallace racing there is a calculator to work all this out for you.