HRMoneyPit

Probably China

guitman32

iTrader: (15)

You got it. I would say give them a call and ask re the advantages and drawbacks to each style. Though on the surface I would definitely try and support Z1, I see them standing behind their name branded product (regardless of how it was sourced) more than SPC.

Here are some representative specs I found based on the serial on the main heim joint - LDK JMX12T (on the particular UCAs I received):


http://www.ldk-bearings.com/en/pr04.asp?id=106

Similar avail on summit:
https://www.summitracing.com/parts/fkb-jmx12t

From another supplier:
http://www.wychbearings.co.uk/jmx12t...d_bearing.html

guitman32

iTrader: (15)

For me these arms produced ~9.4deg caster with both inner rods threaded equally. Arms easily took me to beyond 3 degrees with a lot of room to go.

guitman32

iTrader: (15)

I was inspecting the suspension after my last track day and noticed slight play in the wheel and a clunking noise which ended up being the joint on the arm, which had some play because the nut had loosened slightly....since I didnt use locktite after my last camber adjustment.

If you break the nut make sure to use locktite when re-tightening, or check it frequently if you are tracking etc.

amr_electron

iTrader: (8)

https://my350z.com/forum/brakes-and-...l#post10829521

That's a well known problem with these arms,

guitman32

iTrader: (15)

Mine didnt break. I wouldnt call it a problem either. Even if you did drive it loose (which I undoubtedly did) I highly doubt it would snap like that.