pcm1959, I'm just wondering how many vendors put together a complete kit. Was that the guy from Titan who puts together the Kodiak kits. I've talked to him at Quartzite. I just finished the disc retrofit. It sounds like the OP want to buy a unit with discs already on. Try to find a unit with axles that have 8 lug wheels. You don't get the biggest calipers/rotors with 6 lug wheels. I did pretty thorough research and that's one of many interesting thing I learned. PM me if you need some guidance on retrofit. Craig