Does anyone know if the '99-'02 factory viscous fan setup (ERR4959/ERR4960) is compatible with '03-'04 (PGG000080) from both a fitment/clearance and airflow perspective? I want to retrofit the replaceable viscous clutch setup in place of my '03 all-in-one fan unit.

 

Fits perfect, no clearance issues.

Works well in my wife's 04'.

Tech specs? What's that....

 

Perfect, thanks. Another project box checked.