ok so the rag joint on my 98 blazer needs to be replaced. I have been reading on here and other forums that you can use a jeep shaft to replace it and eliminate the rag joint all together. which I am contemplating doing just haven't been able to find enough info on exactly how everything fits together and what needs to be modified. so anybody who can help with that it would be greatly appreciated. I have also read that an astro shaft eliminates the rag joint and is possibly a direct replacement with no mods but cannot find out for sure if it is and what year it would need to be so if anybody knows please help me out.