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Actually, the steering boxes were supplied to both by Saginaw. But it was '84-'94 Cherokee shafts that fit the square-bdy S-10s, though the '87-'91 F150 shaft also works, and some '90s Astro shafts can be adapted as well. I'm looking for best clearance, so the F150 would be easiest, but I'm willing to do extra to get the precision of no rag joint, and I want the road feel, so forget the F150 version.
On this topic, I could use a Grand Cherokee steering box for quick 12.7:1 steering, but I really need the internal stops of the IROC-Z version, and they're still available used and just as cheap.
Now if I can't get an exhaust manifold to clear the Cherokee shaft, then I'll offset-mount the engine as necessary.
I found another '01-up LR4 4.8L for $400, now I just need to find a pair of NV3500s to combine. I need a 2wD S-10 version, but then I need to swap its 5th gear out for a 0.73:1 from a fullsize. And if I can find a 2.47:1 rear gear at a price I can afford, then I'll want the 4.02 / 2.32 first and second from a fullsize. S-10 was 3.49 / 2.16. All used a 1.40:1 third and 1:1 fourth.
The S-10 case / shifter boss are different from fullsize. And B&M makes a better shifter for the S-10 version.
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