I think unless you are in a complete race environment and trim, you could use a solid front axle at speed for most of what was in that video. You aren't going to be as competitive with a solid front vs. IFS, but if you aren't competing, I'd much rather abuse the solid axle vs. stock IFS, lol. My ultimate plan was to build up a rather light solid front axle with all the goodies-fabricated center section, forged knuckles and "C's", the RCV 60 axles(gun-drilled), a True Hi9 diff, etc. But that's so spendy, I thought I'd give myself a chance to finish the VX first, then hang ornaments on it With the lighter unsprung weight up front, your axle isn't fighting the high speed bumps as much as when it's a stock heavy old slug.