I have same and mechanic said if it’s not that loud and you change gearbox oil ( I use Castrol 80 vmx gear oil )
I do it every 30000 ks and it silky smooth.
He also said nice gentle gearchanges and should be ok .
It’s gear selector that problem in mine .
Regards peter
yes its about $5000 at Sydney Diesel and is a 14 hour job and its more than just replacing pump . I went through this exercise for friend who has same Nissan Navara as me . What was amazing how much Sydney Diesel
knew what gasgets and assorted sundries that car needed to go with a successful...
The early ones blew up motors .
You have to use engine flush on these motors as journals block up .
I have a 2006 d22 3litre and it’s powerfull
and economical 28 mpg.
I have had 5 hiluxs and this Nissan is the best car I have owned .