I am not a Toyota expert, but the engine size in general has less to do
with this issue than the flywheel size.  That will be related to
transmission type and four wheel drive versus two wheel drive, possibly
other factors.  You should be able to find the displacement on the
emissions sticker under the hood, if it is still there.  There are
numerous Toyota newsgroups, such as alt.autos.toyota.trucks, where you
might find more help.

Cheers,

Earle