I have owned several with 3.0 and 4.0 OHV engines
with 5 speed trans and they were very durable
and low maint. The 4.0 OHV is noisy on startup
even when new, but keeps on running. I like 5w-30
in the 3.0 and 10w-30 in the 4.0
I'm not comfortable with the OHC version timing
chain setups.