michael king wrote:
>As mentioned the panhard rod os for lateral location and would not help with
>axel tramp. I have a SII alpine and a MKIA tiger. The Tiger has dales
>springs 3.07 LSD and a 340hp 302 ford crate motor, if i use more than 2500
>rpm at the start it lighst up for a moment.. then violent tramp.. so i'll be
>installing traction bars.
>
>The alpine can also tramp (its warmed a bit ;-) ) but to the point, the
>alpines axel has a habit of hoping sideways if you hit a bump mid corner.
>This was noted in many of the road test, now its more noticeable with the
>early cars with lever shocks, but its still evident in later cars.
>
>I assume they put the panhard rod on the tiger fearing a car with more power
>having that issue may lead to some nasty accidents.. and there must be some
>sideways axel movement or the brackets would not be tearing/cracking.
>
>
>
>
>
Your last paragraph is telling indeed. If the leaf springs keep the rear
axle in line then movement up and down causes the rod to push into and
out of the frame mounted bracket. That's what causes the flex and
subsequent failure. And because it is a badly located rod, it should
actually be horizontal in its attachments, then the off angle
exacerbates the problem of flex. Every little bump and it's rebound...
mayf
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