hi when we made our brace we used an 1/8 scale steering arm /turnbuckles at each end and when we got to the bit that your are having problems at diff housing I used a little bit of aluminium I found on old electric car to mount it square out from screw in housing only about 10 mill long to clear housing and bolted brace to it worked well when chassis bent you just adjust it straight again
greg
did not work first time so I priest it again and you know what happened///ha