Manual Rack and pinion for 72C10?

[theastronaut]

It'll be hard/impossible to find a rack with a slow enough ratio to make it reasonably easy to turn at parking lot speeds. My stock manual steering box has a 20:1 ratio and with added caster + radials its a bear to get it parked in tight areas. Any quicker ratio and I wouldn't be able to park it.

You might have to look into a regular rack, loop the lines, and use a reversed steering quickener in the steering shaft to slow down the ratio and multiply leverage. At that point, why not add electric assist into the column so you get the benefit of a quicker ratio rack and it's not hard to park? About the only other option is to go back to skinny bias plies with zero caster to make a normal rack easy enough to steer, it just isn't going happen with modern tires, alignment specs, and a normal ratio rack- that's why no one offers them.