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'48 F-1 front sway bar

 
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Old 09-03-2017, 08:37 PM
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'48 F-1 front sway bar

I had Carolina Sway Bar bend one up per my design out of SAE 1045.
It's 1 1/8" and the frame mount bushings are from Moog.
I fabbed the sliding end links and the mounting plates.
She's now flat in the turns.
Sorry about the photo, I've got no rack to make life easy.
 
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Old 09-03-2017, 10:42 PM
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Is it a solid bar, or hollow tubing? That's massive!
 
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Old 09-03-2017, 11:58 PM
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Solid 1 1/8" 1045 spring steel. At the end of the bar, at 5-degrees twist
it's about 370# of force.
 
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Old 09-04-2017, 08:57 AM
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Nice! Got a better pic of the frame mounting location/bushings?
 
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Old 09-04-2017, 09:12 AM
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Can we see what your design drawing are?
 
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Old 09-04-2017, 10:26 AM
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Originally Posted by tinman52 View Post
Nice! Got a better pic of the frame mounting location/bushings?
For the two front bolt holes, I knocked out the factory rivets between the frame and the forward cross-member. (Plenty of other rivets holding the stuff together)
 
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Old 09-04-2017, 10:29 AM
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Originally Posted by Moe Craig View Post
Can we see what your design drawing are?
Maybe, I'll look in my binder and see how presentable they are........
 
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Old 09-04-2017, 10:55 AM
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Plates are mirror images of each other. (and obviously not the
finished product in these views)
Rough sketches below.....
 
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Old 09-04-2017, 02:27 PM
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Great Info 1948!

I have been looking for F-1 Front sway bar for a couple of weeks, and nothing but applications for Mustang/Pinto front end conversions. So...Thank you so much!

Seems to me there would be a lot of interest in this. Especially for softer front springs (Polyslip; remove nos. 3, 5 , 7; etc.) or even taller sidewall tires and stock height where you can end up with more body roll.

Looks like your bar goes between the springs and the frame? How does that work, since the sway bar is hit before the bump stop on hard bumps?? Or am I not seeing it right?

Also, looks like you are running stock springs, less the bottom-most one, which the mount plate takes the place?
 
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Old 09-04-2017, 05:10 PM
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No one makes a dedicated front bar that I could find. Quickor used to make one years ago but his specs are in the hard drive of their computer which crashed long ago.....

As far as my design- those sway bar frame mounts will never get touched, even though my front bump stops have been mashed almost flat over the last 65+ years. Even with the spring directly kissing the frame at that point, it looks like I've still got about 1/8" before the sway bar bracket gets tagged by the spring. I will replace the bump stops in the frame with new rubber though, needs to be done.

The spring pack is 8 leaf. Underneath the bottom segment is a 6-degree steel caster wedge, then the fabricated plate and then the I-beam.
 
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Old 09-04-2017, 06:36 PM
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I noticed that smashed bump stop. Kinda of glad it is smashed to give your sway bar setup a good test of clearances.

I couldn't see the castor shim.. I am using 6 degrees too: the truck seems to like it a lot better by going down the road straight! Appreciate you mentioning the order (top to bottom) of bottom leaf, shim, plate, axle seat. I thought so, but was not sure. So I assume the thin edge of the shim lines up more or less with the front of the plate.
 
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Old 09-04-2017, 09:32 PM
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Originally Posted by electricmaniac View Post
So I assume the thin edge of the shim lines up more or less with the front of the plate.
Yup. That's how it is.
These seem to drive particularly hideously without the high positive caster numbers.
Makes sense if you're running radials as the caster has got to be adjusted from the
bias-ply based numbers. (combating radial tires' inherent behavior of being negative
at speed)
 
 
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