RE: need to know
Dynamite or hot racings engine braces will do (not that I know of any others), I'd never put anything else from hot racing on my LST but their brace is fine, I have had 2 rossi's, an LRP spec 2, and a draked .30 in there along with the stock M427 and havent had a failure with the HR brace.
Killerhobbies.com has them both in the LST1 section, just look under the brands.