Could this be the change from radius to roller followers?
From my 92-96 engine book.
Truck Cam ID,G In 19-59 258* Ex 59-19 258*
FWD Cam ID,H In- 16-66 262* Ex 56-26 262*

Cheers, Charlie
If It ain't broke, Modify it!
87 Montero turbo Converted back in Spring1989
95 Montero SR 3.8 DOHC Only one?
93 Pajero 3 door 6G75 Mivec with paddle shifted 5 speed
Then a Gen2 SR with full coil independent suspension.