If it's power steering, it could be any number of reasons. If it's manual, I'd look at the idler arm.
I recently took apart and refurbished my column and cut and converted it to attach to the rack and pinion, so I am familiar with the non-tilt column, the tilt column is probably pretty similar, u-joints in whatever application(if thats what it uses) are universally sized and there are websites devoted to nothing but u-joints of different sizes, I would dissasemble it and find the u-joint size(use a digital caliper or micrometer) then find one of the same size