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Old 05-31-2005, 09:57 AM
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Decided on a 4-link...

... for my '47 Ford Coupe. I'll likely be using either Mickey Thompson SR6655 (29X18.00R15LT) or M&H ROD-07R in 390/45R15 (29.5" tall). Since this car is so wide, and I'm using Fairlane Fiberglass's +2 1/2" wide rear fenders, my frame rails (and link bars) will be at least 36" apart. I've already submitted my rail drawings for a quote (from Autoweld), and will be using all urethane ends. My questions are:

Will the wider than normal width between rails affect anything?

Will a diagonal locater link be enough to keep the rear squared up?

Autoweld's Ultimate II and low profile setups both use bars that are 18" eye-to-eye, but I may need to shorten them up a bit to get the tire centered without cutting into the rear seat riser. Will shorter bars harm the handing or traction?

Thanks!

Russ

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Old 05-31-2005, 07:00 PM
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I would go with a panhard bar rather than a track bar. You will get more stability with a longer rod so since you say your car is wide try to use that to make your panhard longer. Rule of thumb is long,low and level.
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Old 06-01-2005, 08:10 AM
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I understand that word meanings change with time. When I was a kid, a gentleman wouldn't use the word "butt" in mixed company unless he was talking about his new shotgun. So, I'm ready to accept a change in meaning of "track bar." In the fifties, the sporty car set called it a "Panhard rod," but the Saturday night roundy-round boys called it a "track bar." Exactly the same thing, but with different names.

Now, I'm getting the idea that this "diagonal locater link" is being called a "track bar." Am I correct?

As for the original questions, I'll admit the diagonal link will position the axle correctly, but the Panhard is a much more efficient use of material. When you don't have anything back there to which you can attach a Panhard, the diagonal is the way to go.

As for the greater width, that's a good deal, not bad.

Last edited by BillyShope; 06-01-2005 at 08:18 AM.
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Old 06-01-2005, 10:11 AM
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Quote:
When you don't have anything back there to which you can attach a Panhard, the diagonal is the way to go.

What?! Nothing to attach to? Just make something! sheez lol


BTW, you said "Butt" (snickers)

feelin old yet?
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Old 06-01-2005, 07:40 PM
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After doing some "research", it appears that at least one manufacturer (Art Morrison) says the diagonal link will eventually fail on a street car. He recommends the Panhard... I'm not sure how much room I'll have for it though.

Meanwhile, here's my frame rail drawing, it's 2" x 4" with a 2" x 6" front crossmember and 2" x 2" rear body mount crossmember, all 1/8 wall tubing.
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Old 06-01-2005, 07:45 PM
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??????

With frame rails such as have been drawn and 36" apart there should be no problem at all getting a panhard bar in there..I see lots of ways and places to mount one..

OMT
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Old 06-02-2005, 02:37 PM
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how about a jacobs ladder as used on sprint cars does not take up much room.
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Old 06-02-2005, 07:52 PM
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Quote:
Originally Posted by barnym17
how about a jacobs ladder as used on sprint cars does not take up much room.
Got a pic? I've heard of it, but it's been awhile...

Russ
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