Came across the Jamco website while looking for some springs a buddy's project... they have tons of parts to make your '40's, '50s, and '60s car handle and stop better.     They carry front and rear suspension parts and springs, shocks, disc brake conversions, engine swap parts, and a bunch of other stuff.   

http://www.jamcosuspension.com/home

These are thier new tubular arms for '49 to '53 Fords.   Nice looking stuff.