Custome 6x6 help needed

[Speedmutant]

Hi guys looking for someone who can assist me with my 6x6 build.
basically I am running a stock scx10 honcho kit with a modified tlt axle in as the center axle and the axial axle moved to the rear and flipped to get them all driving the same way, I have managed to get the tlt axle linked upto the stock axial 3 link setup and running just fine but I am really havng issues with the linking of the rear. Anyone able to help me with how to position the 4 link setup.
I have tried many ways and failed. just cannot get the rear axle to flex much.

Any advice would be much appriciated.

I joined 2 TLT diffs to make my dual output diff and then have the gmade alu pieces on the diff to connect to.