I have had made aluminum steering racks and rear bushing carriers. They are plated black and are identical to the original plastic pieces.
The steerig racks will take the original bushings or bearings and are threaded for kyosho ball studs. They are $10 (US dollars) shipped.
The rear bushing carriers take the original bushings or the delrin ones. These will not oval out like the plastic ones. They are $20 (US dollars) shipped.
For all orders outside of the US please add $1 per shipment for added shipping. I am on RCtech.net as lp3233 and on Ebay as klzpl1015. There is a thread on rctech in the offroad section that you can read to verify this post. My paypal is
lplanck@verizon.net.
Thanks
Leigh