The Borgeson steering box seems to be based on two different OEM boxes but if I were to order one which one will I receive? I don't trust the pictures @ Summit, JEGS etc.

One box is based on the Delphi 600 box that was used in Grand Cherokees. The other one is apparently a JKC box (not entirely sure but I think Hitachi owns JKC). These boxes can be found in in Isuzu Trooper/Opel Frontera A/Opel Campo/some RHD Nissans.

here is the Delphi based box (note the part where the PS lines connect and the housing extends past the sector shaft) :





the other PS box has a shorter housing (ends shortly after the intersection with the sector shaft) and the part where the lines connect looks different as well:

I think I would go to the Borgeson website, or call them to see which box fits your application. Once you get the correct part number from them, you can get the box from the supplier of your choice. I don't believe Borgeson sells directly to consumers. Gene

did some more research and I believe that they do not use the Delphi box anymore. They claim that their boxes are 100% new and apparently the Delphi 600 box is out of production. Furthermore the Delphi box had to be cut and rewelded as it was too long (see weld on sector shaft housing in first picture).

I wonder what it would take to install a used jkc box out of a trooper into an a/b/e body?

This is what I'm trying to figure out obviously you would need to cut off the old mounting ears and weld on new ones. And you would need to find a pitman arm that matches the spline count and taper of the Isuzu box (or cut off the spline part of an Isuzu arm and weld it to the Mopar arm).

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Borgeson discontinued the Delphi boxes several years ago.

They are now using new (un-welded) castings to produce Isuzu based steering boxes for Mopar applications.

I assume a bunch of boxes built around welded Isuzu castings are still in the pipeline, however.

Are the new boxes a lot lighter too?

I don't know the weight difference. I just saw the latest version at SEMA last week.

Thanks Cass.

I heard last year they were coming out with their own one piece castings.

Any pics of the new setup?

Does Borgeson use a custom worm gear for the Isuzu box? According to their website the ratio is 14:1 but the Isuzu steering is 3.8 to 4 turns lock to lock which would mean a ratio around 18:1. Or is the internal ratio the same but Isuzus just use a shorter pitman arm?

Looks like the Isuzu box.

Seems the NZ government is not too happy about the modified Borgeson steering boxes as they issued a safety alert:

https://www.lvvta.org.nz/documents/safety_alerts/LVVTA_Safety_Alert_09_-_2018_-_Modified_%27Borgeson%27-brand_Steering_Boxes.pdf

Maybe that is one of the reasons they are coming out with a new box...

I would be a bit leery of anything steering box wise that Borgeson is selling. I have installed a few of their units in different applications and had a lot of problems. Wrong angles on the pitman, groaning at low speeds or when stopped, Fluid overheating for a few examples.
Their tech support consists of 1. Try a different fluid. 2. We'll send you a new box / pump etc.
When asking to speak with one of their engineers I was told they don't have any. They use consultants. I was further told that they design for more popular application (think Camaro) and if it works there they then adapt it over to others. Having trouble believing all of this I tried to reach the owner / CEO and was told good luck.
Digging into it, the father built the company with a stellar reputation for u joints etc. He has basically retired and his son along with the father are more interested in making guns.
So Proceed with caution.
And should there be any non believers, Google "Gerry Zordan" and do your own research

Well, i can add a little info to this conversation.

I just installed a borgeson box in my '68 Dart

I decided to pull the trigger on this because of the slop in my original box, and the leaking became a big problem..

Purchased a unit from BAC, seems to be the newer style, its a one piece casting, meaning it doesn't have anything welded to it.
It is smaller and lighter, but I still had to bang on my headers in a new spot to get clearance for the Borgeson unit, (dougs headers).
Install went well enough, I used BAC's coupler. New box has absolutely no play in the center like my old box, it has a nice feel, nice and firm.
No slop, no leaks. Also installed a new Moog pitman arm when I did the box cause its the only component in front end that I had not replaced or upgraded yet.

The problem I'm having is the steering wont return to center by itself after turning. It returns somewhat, but slowly, and not all the way to center.
You still have to straighten up by turning the wheel back to center yourself. Kind of annoying to say the least.
BAC told me I probably didnt have enough caster. So I went though my alignment last sunday. When I first checked I had 3 degrees of caster. After some adjusting I managed to get 6 degree, thanks to my QA1 upper arms. Old box return to center great with 3 degrees.
But adding more caster didn't fix the issue. Maybe slightly better.
Sent an email directly to Borgeson, They suggested backing off the adjustment on the top of the box 1/4 turn and see if that fixes it.

Nope, tried 1/4 turn, and then another 1/4 turn, but the problem persists.
Just sent an email back to Borgeson again telling them the adjustment didn't work. We'll see what they say.

Could you share a picture of the new box? I'd like to see how the new case with mounting tab looks like.

I only took a couple pics before I installed it, so you might not be able to see part your interested in.
But heres what I got.

is it the photo or is there a bit of an angle at the coupler in the steering shaft?