Greasable Shackle Pins

[Peter60]

I read today that you only need to grease shackles if they are metal to metal. That is the metal shackle pin is touching metal in the bush.

So when your bushes are polyurethane like these

s-l500.jpg

you don't need to grease the shackle pin.

But when the bushes are polyurethane with metal inserts you need to grease the shackle pin.

s-l1600.jpg

So in my case looking at the REAR springs, the front shackle uses the metal inserted bush so it needs grease.

The bottom rear uses the non-metal bush so it doesn't need grease but the top shackle pin has a metal only bush so it needs grease.

All this sounds reasonable.

Thoughts????? Any consequences of greasing the non-metal bush?

[Johnny Roadkill]

Yep, metal to metal requires grease - easier to maintain if you use pins with a grease port, both at shackle end and fixed pin end.

Poly to metal doesn't require grease but silicone spray will stop them squeaking.

Metal type with rubber surrounding it in the spring eyes will offer less resistance to suspension flex than poly and may last longer too. Flex improvement with rubber is probably marginal but every little bit helps.

Cheers,
D