Brendan's 2014 Solid Red STU Autocross Build Thread

[vwhite_turbo]

Originally Posted by Brendan

The control arms from gktech work very similar the spl arms but are like a 3rd of the cost. These arms have spherical inner rod ends but the bearing is a standard type that you can get from most stores that stock suspension parts. What I decided to do was replace the rod ends with a type that would be legal for racing. I was able to find a set of rod ends from a 4wd parts company of all places. The dimension and type were perfect for the 370z. I ended up having to swap over the guts from the bushing on the z1 arms to make the rod ends work but someone might be able to put together a set by just having a set of inner sleeves made for the rod end bushings.

Fyi it seems like it would totally be possible to convert a set of spl arms the way I did these GKTech, I didnt want to spend $1000+ finding this out if I wasn't sure.

PXL_20210319_222049350 by brendan sobers, on Flickr

Man, this is very helpful and so close to exactly what I need. I am trying to do the same thing but using the SPL arm. The SPL rod end is a 5/8-18 RH thread, which barnes4wd.com doesn't seem to have. I will email them to see if they can custom make the exact mount with a different thread size.

I know Speedway sells one that has the 5/8-18 thread, but their bushing mounting width is only 1.3" which is too short and the housing ID is only about 1" which is a little small.

Do you happen to know the width of the forged housing without the bushing?