Fabricated C6 Uprights...

[JasonElvisHeard]

Before I go into the details on the uprights I need to explain and showcase the experience I have with welded uprights and how they are built effectively. One of the most important elements to the construction of uprights is the fixture, and how it is built. Below is a picture of a Trophy Truck upright I built about 6 years ago, notice the fixture and main plate they are bolted to, they are all steel.



It is important to use Steel for the construction of your upright welding fixture, you need to combat the movement of your material during the welding process and using steel is the best way to combat this. The fixture will be extremely hot during the welding process and if you were to use aluminum then the fixture will move due to the welding heat. This is why the use of aluminum is not recommended for fixtures when welding is present.




We start with a Precision machined 1.5 inch thick chunk of steel, then machine the correct holes and tap the plate to provide the appropriate support for the fixture top plate. In the second picture above you can see the actual upright fixture bolted to the main block; this provides a very stable and accurate fixture that will not cause issues because it is not machined from aluminum.

[JasonElvisHeard]

One unique item that The GMR has done is that we matched the stock lower ball joint taper perfectly. We will not disclose the exact taper but we can assure it is not either of the standard 7 or 10 degree tapers. With this being a unique taper we decided to custom machine a reamer that matches the stock taper perfectly to ensure quality fitment with the stock GMR components.




The GMR offers these uprights in two different styles, A stock height unit and a 1 inch drop unit as seen below. The image to the bottom left is a 1″ drop upright with a stock height one to the right. These uprights are designed around the stock caliper mounts and ball joints so they will bolt up to ANY C5/6 brake package along with any arms designed abound the stock uprights. These units are also available with a welded on steering arm for direct stock replacement, both in the 1 inch drop and stock height.



The new GMR fabricated uprights are only slightly heavier than the aluminum stock components with a weight of only 6.9 pounds each compared to the stock 5.8 pounds. The Stiffness to weight ratio of the GMR uprights are drastically better than the stock units at operating temperature (non-ambient temperature).



The GMR Uprights are designed to be universal, from stock replacement hubs to GMR front hubs these uprights will work with any C5/6 package.

[214Chevy]

Looks damn good! Thanks for the tech info. What about steering arm options?

[Jay@GMR]

Originally Posted by 214Chevelle

Looks damn good! Thanks for the tech info. What about steering arm options?

You would retain your current steering arm, it would bolt on in the same manor as it currently does on your OEM's Upright.

So basically if you currently have a Scott Mock, DSE, Roadster Shop, Art Morrison, etc. you would simply re-use the one that came with your particular suspension.

Now, IF you happen to have a suspension that utilizes the OEM's Upright WITHOUT the steering arm machined off, then we DO offer a weld on arm to maintain stock C5/6 location.

Thanks, Jay

[itsals1]

Any possibility that these or future styles would work with RideTech's Tru-Turn?
Travis

[Jay@GMR]

Originally Posted by itsals1

Any possibility that these or future styles would work with RideTech's Tru-Turn?
Travis

Travis, At this time we have no plans to produce a fabricated AFX version, but its not to say it will not be on the list of "things to do". We are aware of the need as we have had others request the same do to spindle flex and deflection of the upright section itself.

You may want to look into CPP's Upright offerings. They have a Tall A,F,X 2" drop upright that may work with the TruTurn? It would most certainly solve the deflection issue at a very reasonable price.

Hope this helps.

Thanks, Jay

[garickman]

Nice work on the uprights. Looks to be top notch to match the rest of your parts.

[Jay@GMR]

Originally Posted by garickman

Nice work on the uprights. Looks to be top notch to match the rest of your parts.

Thanks Greg!

Just FYI.... these suckers go great with our Floater Rearends Oh and dont forget the GMR C5/6 Front Hubs

[wiedemab]

Just curious on what you would recommend from a coating perspective. I would assume that any mounting surfaces would need to be masked off as to not change the dimension, so any concerns about corrosion in those areas?

Just curious.........

These things look AMAZING

[Ketzer]

Originally Posted by Jay@GMR

Travis, At this time we have no plans to produce a fabricated AFX version, but its not to say it will not be on the list of "things to do". We are aware of the need as we have had others request the same do to spindle flex and deflection of the upright section itself.

You may want to look into CPP's Upright offerings. They have a Tall A,F,X 2" drop upright that may work with the TruTurn? It would most certainly solve the deflection issue at a very reasonable price.

Hope this helps.

Thanks, Jay

Just trying to learn a little tech here... What makes the "AFX" so different than these uprights?

Anyone have a spare copy of Uprights for Dummies?...


Jeff-