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Sierra Mushroom Inserts
the_big_1 - 30/6/17 at 06:22 AM

Hi Guys,

Looking for recommendations where to buy the Sierra front hub mushroom inserts from?
I need a pair for my Haynes build (using the transit drag link ends etc)

Talon are £65 but struggle to get hold of them and worried never see them
Rally design are £19 but look like not offset?

Any other suppliers etc?



Cheers!

Nickp - 30/6/17 at 06:44 AM

http://www.kitcardirect.co.uk/mk-indy-mushroom-inserts.html

the_big_1 - 30/6/17 at 06:49 AM

Great stuff!
I have asked them if the thread will fit the Ford transit drop link.


Cheers!!!

Schrodinger - 30/6/17 at 08:00 AM

It's not the thread that you will need to fit but the taper

procomp - 30/6/17 at 10:28 AM

Hi.

Just buy the rally design ones. Having the offset is a complete waste of time. Anyone selling offset inserts claiming to be for caster correction is talking complete rubbish.

Cheers Matt

MikeRJ - 30/6/17 at 04:36 PM

quote:
Originally posted by the_big_1
Great stuff!
I have asked them if the thread will fit the Ford transit drop link.

Cheers!!!


The taper (not thread) needs to be compatible with the transit drag (not drop) link. I suspect it probably is as most of the locost variants appear to use the transit drag link.

Nickp - 30/6/17 at 05:01 PM

quote:
Originally posted by procomp
Hi.

Just buy the rally design ones. Having the offset is a complete waste of time. Anyone selling offset inserts claiming to be for caster correction is talking complete rubbish.

Cheers Matt


Can you explain please? Just curious

40inches - 30/6/17 at 06:33 PM

quote:
Originally posted by Nickp
quote:
Originally posted by procomp
Hi.

Just buy the rally design ones. Having the offset is a complete waste of time. Anyone selling offset inserts claiming to be for caster correction is talking complete rubbish.

Cheers Matt


Can you explain please? Just curious

The castor is taken through the centre of the top and bottom ball joints, twisting the offset insert doesn't alter that relationship.
It does however alter the Camber, can be used to fine tune. Or so it seems

procomp - 30/6/17 at 07:50 PM

If wanting to fine tune camber you'd do it properly with an infinite adjuster on the thread of the joint NOT on the insert as both sides need be set the same. Hence just buy the inserts with a central tapered hole.

Cheers Matt

Ben_Copeland - 30/6/17 at 09:07 PM

Listen to matt (procomp) he does this for a living!

Don't need an offset mushroom !

the_big_1 - 2/7/17 at 03:38 PM

So the rally design ones at £19 are just as good as the MK ones at £49?
Does anyone know if they are tapered?

Ben_Copeland - 2/7/17 at 03:43 PM

I've got Rally Design ones. Had them for 4 years no problems

the_big_1 - 2/7/17 at 03:45 PM

Cheers Ben,

Can you remmber if they where tapered

Ben_Copeland - 2/7/17 at 04:04 PM

Yes I believe they were

the_big_1 - 2/7/17 at 04:08 PM

Great stuff!
I guess the offset ones give you a little bit more camber, but the top drop link should more than enough adjustment.
And it leans your hub back. (Don't see any benefit to that lol)
As said, castor is only through the centre axis of the alignment of the top and bottom ball joints so offset inserts have little to no effect

the_big_1 - 2/7/17 at 05:55 PM

Hi guys,

Just before I order, are these the right ones?

https://www.rallydesign.co.uk/product_info.php?products_id=13003

Ben_Copeland - 2/7/17 at 06:02 PM

Yep

the_big_1 - 2/7/17 at 06:04 PM

Great stuff!

Will order them!