Rear set up with z4 hubs and z3 i6 trailing arms

[Pjrv78]

Hi all,

This is my first post here on R3V, sorry if this has been asked before, just looking for more information and couldn’t find the search term to locate it.

Can this be done?

Using the trailing arms I have are from the z3 2.8l, reading everything it will leave me at a +63 not good.

So here is my thought, looking to do what is in the link below, z4 hubs and e46 brakes with the 6 cylinder z3 trailing arms.

This reduces the +63 by 22-23 mm leaving me at about a +40

What do you guys think? I am reading that it will leave you at the same offset the z3m arms leave you with at final.

https://youtu.be/EzuJ4DA6wn8

How would this compare with the results from the z3 i4 or e36 compact trailing arms? What is the final offset?

Is it possible to do the 5 lug swap and maintain an et20 offset in the rear?

The wheels I want to use are 17” 5x120 8j et20 squared. Will this work? TIA

Sent from my iPhone using Tapatalk

[jchap808]

Hey did you get this worked out for you? I'm in the same situation.

I've seen this video and it got me curious and wanted to attempt this with the Z4 hubs.

My setup is full Z3M setup with Style 32 rims +20 front, +26 rear.

I have one other option that I could resolve myself, install the OEM e30 trailing arms with Z4 wheel hubs, which would cause me to weld in reinforcements to the rear trailing arms, differential, and subframe. This modification would keep the original E30 offset and it would work from SRSConcept.