Am looking to replace my 2001 oem steering box. Looks like a lot of options. which ratio, one vendor says 18-1 best for diesel? one says 12.7-1 , what is the best way to go? I just want a steering box to ELIMINATE the constant wandering and correcting while I am driving. Can't take eyes off the road for a second, will be running in the ditch. I am looking at one Summit makes, also Borgeson. BTW, I have installed the Luke's Link, made very little difference. I am sure there are lots of folks who have the same problem. If this has been answered before, please have patience with the repeat question. Just refer me where to look. Thanks.