4" Lift Steering Correction??

[72longbed]

I'm installing a Tuff Country 4" EZ-Ride suspension on my 71 K20 and need some experienced answers. First of all, will I experience 'Bump Steer' with 4 inches of lift and a stock steering arm? Next, my factory drag link components are all a rusted 'lump' of metal, so they need to be replaced. I'm wondering if a 'Dropped' drag link would be an answer rather than try to wrestle that steering arm off of that 34 year old knuckle? I have read opinions that dropped drag links don't correct 'bump steer'? Does anyone know for sure with our 67-72 4x4's?

Thanks,
72longbed