If those bushings are loose the shaft will flex with each intake pulse. This is what fatigues the plates to failure.
I would machine up some new ones so the shaft will be snug all the way along its length. I started making them in Delrin for my SR but then got the parts truck and it had a new intake on it. Never finished them.


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.