Technical F350 steering box

I need to know if a '53 F350 steering box is much bigger than the F1 I'm running. I heard they actually steer lighter that the one I'm running now.

 

Much bigger.Pitman arm has bigger splines.Did one for my 29 coupe then redid with a f1 1/2 ton.

 

are you going to put this on a t-bucket?

 

I was going to but not now. Too darn big.

 

Don't mean to jump in but I have a similar question. I have a 53 f250 box. Is that different than a f100 to use in a model a?