Help!

I'm looking for steel rims to fit my van and the Nitto tires?
See details below.

I recall hearing that there is only one company that makes DOT certified bead lock rims for light-trucks, anyone remember that post / know of the company?

Because I'm a 2006 van, I have an 8 by 6.5" bolt pattern.
Although there is a 2006 F350 front axle (8x170mm) its drilled & studded to match the rear axle's 8x6.5" pattern.

From what I've learned I need F350 wheels from 1996 and earlier to get the 8x6.5" bolt pattern.
From the few rim sites I've been to they don't offer a look-up for vans, just the various pickups, and even then they don't list the 1996 and early earlier model years.

The Nitto tires I'm eyeing are E-series 4000# +/- and aluminum rims are not up to it.

Nitto Dura Grappler LT285-75R17 E 128R
Stock Number 205-370
Tread Depth (1/32") 16.9
Inflated Overall Dia. (In.) 33.86
Overall Width (In.) 11.61
Approved Rim (Measuring Rim Width In.) 7.0-(8.0)-9.5
Maximum Load Press (Weight Lb. @ Psi.) 3970@60
Revs per Mile 614

Nitto Terra Grappler LT295-70R18 E 129Q
Stock Number 201-130
Tread Depth (1/32") 16.6
Inflated Overall Dia. (In.) 34.41
Overall Width (In.) 11.77
Approved Rim (Measuring Rim Width In.) 8.0-(8.5)-9.5
Maximum Load Press (Weight Lb. @ Psi.) 4080@60
Revs per Mile 604

Now for why the urgency?
My van, which is still being otherwise worked on, had the vibration at 55 - 60 MPH diagnosed to the right rear tire which knotted up its sidewall belts. That likely started along time ago while I had my toolbox in the back and has been deteriorating since.

I can't see replacing just the one tire, which leaves me exposed to doing it again the next time I have my toolbox in the back.
Thus the upgrade in load carrying to the high end of the E-Series if not to truck tires in the F - G - H series.

As a bit of history, Andy mentioned the Nitto tires:
https://www.ford-trucks.com/forums/8...ml#post7730682
https://www.ford-trucks.com/forums/8...ml#post7730915