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Old 10-25-2014, 08:34 PM   #14
davepl
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Join Date: Aug 2006
Location: Redmond, WA
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Re: Ripped the crossmember

Quote:
Originally Posted by ironadict View Post
Nope no panhard bar. Seems to be pretty solid with the 4link.
Does it though? I mean it might be hand, but a truck in freeway ruts at 60mph is a lot more force than anything you can generate. It's not really the walking side to side that's the problem, it's unwanted rear wheel steering.

Imagine that one end of the axle manages to get even 1/4" in front of the other. That's going to noticeably steer the rear end, at least at speed. You'd never notice it at slower speeds though. That's why I bring it up.

Normally you need a panhard bar unless the four links are "triangular" enough to center the axle well. This is what the Chevelle has.

If at least the upper links aren't directedinboard pretty aggressively, you need the panhard bar like the Impala has. Random trivia: GM was so cheap that if you ordered a Biscayne (or maybe it's with all 6 bangers) you only got 3 links, not 4.

The coil spring trucks don't have a super-aggressive angle to them, but they're loooong, so they still step in by quite a distance.

I know nothing about your setup, just speaking in generalities.
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