I just bought a 93 f250 with the 460 and was told I should switch to a solid front axle I noticed the f350's came with one. I already have a six inch lift with 37" tires but one stiff ride. Is there any kits out there and could I just use a f350 as a bolt on? Does this open me up for more suspension options?

 

If you get a F350 donor truck you can do a complete swap just takes the time to do it and the tools and when you get that axle you are limited only by the strength of the axles in proportion to tire sizes. AKA go as big as you want till things break. Usally around 38-40ish is the limit.