You don't say anything about it being the front or rear towers and A-arms, but [link=http://traxxas.com/pdfs/4407_explodedviews_front.pdf]here[/link] is a PDF-link to the front, and [link=http://traxxas.com/pdfs/4407_explodedviews_rear.pdf]here[/link] is a link to the rear.

On the front A-arms you remove the 1739-screw and the 2620-pin with E-clips and the 2563-screw for the shock.

Same procedure on the rear exept from the 2639-pin (instead of 2620 on the front) closest to the chassi.