i believe i am a bit confused as to exactly what you are asking. the style of straight axle is not going to depict what gear ratio it has within. what you need to look for is what your ratio is in your current IFS setup. if it is a 3.50 gear set, then get a solid axle with a 3.5 gear setup or you will be doomed for failure the first time you lock it in. that is, unless you regear the back to match your new solid front.