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Superduty high steer machining

Oddball

Well-known member
Joined
Nov 23, 2021
Member Number
4569
Messages
370
Loc
Canaderp
I found a manual machinist who is willing to machine my steering knuckles (05 SD) for high steer. But I can't find any info on how to machine them, I have one pic I snagged from the internet. The idea so far is to set the knuckle up on an angle plate against the unit bearing surface and tram in the steering arm. That should get X,Y..but is it right? Also going to machine the tops first, then figure out the arm. Plan is to leave a key sticking up off the knuckle. Will this work??
 
I used Weaver Fabrication to machine mine 6 years ago. They provide the steering arms as well. I was very happy with them.
 
BKOR has a key on the ones they machine....so I'd imagine it will.
 
I used Weaver Fabrication to machine mine 6 years ago. They provide the steering arms as well. I was very happy with them.
I'm in Canaderp. The land of pedo priministers and over priced everythings. Shipping and border fees will most likely kill me. I have a machinist at work willing to do the job.
 
Mofab he’s on the gram does 99-04 and 05-22 keyed etc. He’s just over the border from syrup land north of Seattle if you’re on that coast.

 
this guy on FB does them too. maybe you can see what he does.

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What are you planning to do for arms? My understanding is all of the above options have developed their own arms to go with their own machining specs, and I've never heard of anyone buying just the arms and doing the machining themselves or locally.
 
What are you planning to do for arms? My understanding is all of the above options have developed their own arms to go with their own machining specs, and I've never heard of anyone buying just the arms and doing the machining themselves or locally.
Step one is to machine the knuckles, step two will be to make arms to fit with proper height to clear leafs, ackerman, and tapered holes for large TREs. I'm thinking maybe some heavy truck tres or something larger than 1ton.
 
Step one is to machine the knuckles, step two will be to make arms to fit with proper height to clear leafs, ackerman, and tapered holes for large TREs. I'm thinking maybe some heavy truck tres or something larger than 1ton.
ES2062R TRE's are worth looking at, I just swapped to these on my SD60. they are 1" shank, and still the same 7* taper as normal GM Stuff, just larger diameter. 3/4" on the minor diameter end. Theses were used on the GM 4500 trucks.
 

They use 1" thick arms. So basically if you're going to make your own arms just mill it flat leaving a key and drill some holes.

If you're building your own and not machining to a pre made arm who cares about another brands process?
 
When I read the original post I was thinking he was looking for the dimensions. I think a lot of us have been around since the D44 machining days, where there was a standard. This standard is because many driver knuckles (and possibly some passenger knuckles?) were milled and tapped from the factory. On the new SD stuff, there is no standard and every company does it a little different.

Now that I re-read the OP, maybe he's looking for ideas and wants to see what other people have done. I think this pretty much covers it. Weaver (are they still in business?), Busted Knuckle, and MoFab. There's that other guy on FaceBook, but I can't find it.
 
Weaver (are they still in business?)
Weaver is still around and doing this. I run their setup on my 99-04 SD60, and am sending another knuckle their way in a few weeks for a new build. Believe its $350 per side, that includes the arm. Don't quote me on that number though. Whatever it is, price is the same today as it was 2 years ago when I initially built this axle.
 
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