Project Frankenstein

[Motoracer838]

Interesting. I think what you describe would be called "pin-trail". I've normally read about "pin-lead" where the axle centerline is in front of the steering axis. This is done so that a lot of caster can be used which leads to negative camber gain on the outside front wheel when turning (good - to a point). But without the heavy steering due to excessive contact patch trail. And with less jacking effect on the inside front tire.

Thanks for your input, that offset made fitting the spindles to the truck a bigger headache than I expected, (there's an engineering axiom that says, changing one thing will affect three others, I wish it had been that easy...)

The worst part was the surprise I got when I finally dropped the complete engine and trans in the truck, (mock up had been done with bare trans case and block.) you could imagine my surprise at how much the frame rails rolled in when I set the engine in, (yes, I could see the movement.) At that point two things became apparent, 1 I understood why the Moog problem solver offset cross shafts existed and 2 There go my chances of a decent alignment, (the best we could do was -1 degree caster, that just added to the twichyness that the setup created.)

Removing the C4 spindles was one of the best things I've done to the truck yet...

Joe