Adding a sway bar to trailing arms with no .....

[panel]

How do you add a sway bar to trailing arms with no holes or mounting ?

[wreck]

This is what I did for a front bar . The bar is a front torsion bar from a small four wheel drive , spun down to 22mm . the rest is fabricated from flat bar steel .

sway bar .jpg

[panel]

wrek , got another pic from the other way? (Like wheel off view. ) So it's not actually a curved bar then ?

And it has end links and also mounts to the shock eh ?

Also is it clamped to the trailing arm so it doesn't twist ?

[wreck]

Sorry it's off at the moment , going to a drag event a the end of the month , trying to shed a little weight . The bracket on the lower arm is straight 25mmX6mm flat bar , bolted to the shock mount and then a clamp made from 19mmx3mm flat bar that wraps around the lower arm . The lever arm on the sway bar is flat but has a slight down curve .

[panel]

And how does the bar get attached to the sway bar itself ?

Is it a bolt/grub screw ?

Just a hole drilled in the bar or did you put flats on the bar ?

Pics off the car might help my design also if ya can.

[wreck]

sway bar is upside down on the bench . The splines in the arms are from the mounting point on the OE vehicle , just cut down and welded to the arms .

Sway Bar 3 .jpg

sway bar 2.jpg

[panel]

Splined ! Nice.......now gotta start looking at the wreckers.

[GS guy]

Panel, Speedway Engineering makes excellent splined sway bars and arms of varying sizes. I'm using a solid 1/2 bar for my rear sway bar setup on the Deserter. Lots of options for solid and hollow bars depending on your needs. These are sold by a variety of vendors to check for best prices - another option to consider.
https://1speedway.com/?route=common/home
Jeff

[Ol'fogasaurus]

This is a very complicated question.

Specs on how metal things are made are very complicated due to both the mix of the different materials involved, the design of the unit including the stretching and forming plus heat treating just to name a few of the things involved in the making of whatever it is and what it is going to be used for.

Solid and hollow tubes have different structures and don't necessarily do well in use that they are not designed for. Formed (seamed) tubing does not usually work well in torsional usage or bending as the material is being stretched on the outside of the bend and compressed on the inside of the bend.

For what it is worth,

Lee

[wreck]

I was concerned getting the torsion bar turned down from around 28mm to 22mm . if the heat treating would be gone and the bar would either break for just twist . So far so good , my front set up is not stiff , standard leafs ,Koni's on second softest setting .
I wanted an adjustable bar and after spending an age looking for a S/H white line bar , then working out the cost of buying, shipping a correct length set up like what Panel has listed it was cheaper to go the way I did . I like making stuff anyway .

[Ol'fogasaurus]

I was concerned getting the torsion bar turned down from around 28mm to 22mm . if the heat treating would be gone and the bar would either break for just twist . So far so good , my front set up is not stiff , standard leafs ,Koni's on second softest setting .
I wanted an adjustable bar and after spending an age looking for a S/H white line bar , then working out the cost of buying, shipping a correct length set up like what Panel has listed it was cheaper to go the way I did . I like making stuff anyway .

Heat treating, if done correctly and I remember correctly, effects the whole material.

It is not unusual for some machine work and/or stamping to be done at the ends of the bars like for the fitting the arms onto it but this is planned for during the engineering of the part then done in the manufacturing of the part. The heat treating is usually done after forming.

I've seen and heard of people getting away with stuff, but it usually was very minor machine work that was done.

My post, again, was intended for information.

Lee

[panel]

I think my hard part'll be trying to find one the right length. I'm always making stuff !! Love it