gpz 750 rear suspension bearing upgrades

[zedman900]

Hi all I need to renew the unitrac linkage bearings in my missus,s 85 gpz 750 and are hoping someone might know a good alternative to needle roller and bush setup.

Regards Neale.

[Gosling1]

about the best you can do mate, is take all the bearings & the linkages to any good engineering business, and ask them to replace all the needle-rollers with phosphor-bronze bushes and machine new linkage pins to suit. They will also need to fit up some new grease-nipple points so you can grease these spots regularly.

There is nothing available *off-the-shelf* to do this conversion on your 750.

I did a similiar conversion on my YZ490 several years ago, the old roller-bearings were all flogged out because in these types of suspension, the movement of the linkages does not allow the needles to *roll* - what happens is that they just *rock* backwards & forwards in one position and eventually flog out.

Phosphor-bronze bushes will provide a heaps better alternative.

[zedman900]

Thanks for the advice i know a good fitter and turner so might get him to look at it.