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Old 04-29-2012, 11:37 AM
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Steering support bearing deflection

Hello all. I'm finishing up my steering on the '36 Chevy and have a question. First the setup..

Late model Mustang power rack, then a single u-joint, then 17" of DD shaft to a Double U-joint, then a 15" DD shaft into the cabin with a thru-firewall support bearing in the center of that span, then to a single u-joint connected to an IDIDIT "Shorty" column.

I added a spherical rod end style support bearing to the first shaft as close to the double u-joint as possible (about an inch away). because I had to route the steering fairly high and away from the frame rails (not my preferred route but that's what's available) the support bearing is about 9" above the frame rail and had to have a tall bracket built to be able to reach the shaft in the desired location.

I've got it built and it works smoothly (even without the motor running). Now here's the question...

When I turn the wheel I can see the bracket and rod end deflect slightly (less than 1/16"). Is this an issue? I can continue to add bracing to the bracket but it's quickly turning into "Frankenbracket". I've tied it into the motor mounts for support (triangulation) but it still moves a little bit.

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Old 04-29-2012, 07:34 PM
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Can u put up some pictures of this setup?
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Old 04-30-2012, 10:39 AM
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Bob, I've attached a pic. After looking at it again (and again and again!), I think the primary issue is with the type of rod end I'm using. As you can see, it has about a 3" long "body" and this gives it tremendous leverage against the bracket. I think a rod end with a theaded shaft joined with a different bracket might aleviate the issue.

As I said earlier, the steering works smoothly and the deflection is VERY slight.
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Old 04-30-2012, 11:12 AM
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I recently finished my Steering setup as well, and I too had the same issue of having to stabilize that Shaft-

What I did differently was to make a Bracket that held it from the side so that it couldn't deflect as easy-it looks to me that while you have supported your Bearing, it is still being held straight up, and that is what is allowing the deflection-

That slop has to go somewhere, so I think I would re-engineer the angle on your Bracket-
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Old 04-30-2012, 11:44 AM
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35WINDOW, I agree. The issue is having something to mount it to. Perhaps a simple C-channel upright with the rod end coming from the side. With a support arm welded from the upright to the motor mount, it would probably be stifff enough and reduce the leverage the current setup has.

Now, where's my Sawzall? LOL!

Any pics of your steering setup?
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Old 04-30-2012, 11:57 AM
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Quote:
Originally Posted by SinistrV6
35WINDOW, I agree. The issue is having something to mount it to. Perhaps a simple C-channel upright with the rod end coming from the side. With a support arm welded from the upright to the motor mount, it would probably be stifff enough and reduce the leverage the current setup has.

Now, where's my Sawzall? LOL!

Any pics of your steering setup?

I wonder if you could mount it farther forward so that you wouldn't have to have something so tall-I made mine so that it bolts to the Frame rail, made an upright parallel to the Frame, and then gusseted it twice-

Sorry, I don't have any pictures right now, and I have the front end all apart for Paint & more powdercoating-
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Old 04-30-2012, 12:18 PM
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I would much prefer to have it shorter, but the u-joint at the top of the pic is a double-joint and needs support as close to the bearing as possible. I tried it with the support much lower and it wouldn't work. I may have to bite the bullet and put more joints in it to route it low along the frame rail.
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Old 04-30-2012, 12:42 PM
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Sounds like a plan-
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Old 04-30-2012, 01:02 PM
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Well, a quick call to Borgeson tech support confirmed that I should be able to do what's illustrated below. The yellow bungee cord is the desired routing of the steering shaft. I wish it didn't require a $150 double joint at the steering rack but that's the only way to clear the motor mount. The required double supports should be easy with that routing. We'll see....
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Old 04-30-2012, 08:25 PM
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Quote:
Originally Posted by SinistrV6
Well, a quick call to Borgeson tech support confirmed that I should be able to do what's illustrated below. The yellow bungee cord is the desired routing of the steering shaft. I wish it didn't require a $150 double joint at the steering rack but that's the only way to clear the motor mount. The required double supports should be easy with that routing. We'll see....
You are gonna like that a lot better. It is similar to how I ran mine in my 31. I was able to use single joints and mounted the support bearing on an l bracket off the frame. No binds.
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