Featured Projects 1936 ford pickup hotrod

patsurf · Aug 21, 2025 at 6:40 PM

alchemy said: ↑

Split wishbones, especially all the way outside the frame, act as a kind of sway bar in conjunction with the axle. They are one continuous assembly with the ends connected to their pivots. Everything swings just fine and dandy from those pivots if the axle jounces straight up and down evenly. But if one tire goes up and the other doesn’t, some twist comes into play.

A solid sway bar is made to twist. A forged I beam like in the OP’s truck will even twist in its middle. But a round tube axle won’t. So if the tube axle isn’t twisting, and the tube wishbones aren’t twisting, what is going to flex then? Some slop at the spring perch (which shouldn’t be any)? Eventually after enough use, something will crack.
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