Quote:
Originally Posted by rat_rod_russell
Thanks I apprentice you taking time to voice a valid opinion. But let me know if this makes since. The lower link of the 4 bar when under acceleration is not pushed forward in a buckling load but rather pulled in stretching as the knuckle is twisted forward so the arm will not see both extreme loads at the same time. Also the lower arm is so short that there is not that much leverage on the arm. Tubes are .125" wall DOM 1020 (mild steel) and all tig welded. Finally for practical purpose we tested this mounting method on my black and white 57 Chevy that I road raced and auto crossed for 3k miles and streeted for another 9k and never had any issues with the rear sway bar either. (P.S. The black and white car has thinner wall, smaller diameter tubing too.)
Later
-Russell
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Technically, that is not correct. With an independent set up like you have all torque loads essentially will be reacted by the center section. The knuckles in this case are just carriers and do not react any torque. If they do, you have a bad bearing. Therefore when under acceleration the wheels are pushing forward on the chassis. Consequently all 4 bars of the 4 bar are in compression with this design. This is unlike a solid rear axle with fixed bird cages and a 4 bar. As I said before, I can't say that you will definitely have a problem without much more info. If you have run this before and have success then you should be good. It never hurts to discuss these types of things. The chassis looks nice, I'm sure your customer will be pleased. Keep up the good work.
