DPF on older truck??

I sold my truck about a year ago because of CARB rules. I deactivated my MC #. Now I want to get back in the game. I won't buy a newer compliant truck because of the horrible reliability of the emission system. So have any of you put a DPF on an older truck and not had problems? I am asking about trucks that have been running with one for a year or so. Or if you have had problems, what were they? I plan to get a 2003 or older with a Detroit 12.7, which is what I had before. Never had to repair that engine at all.
Thanks to everyone for your help, I miss being out there.

 

I research things before I form a solid opinion. I have spent time out on the road and talked with dozens of owners of the newer trucks, and seen that they are very unreliable. I don't think it is any better to add a DPF to an older truck. I do think that I could recover from a disaster on an older paid for truck much easier than a highly financed one.
The newer trucks are fine for those who want to go that way. I am not one of those. That is why before I do it, I will spend lots of time on here and elsewhere. I have read many of your posts and your opinion is valuable to me. I doubt very much I would ever buy a compliant truck. First I would just not run in my home state, which would be real hardship.

 

Thanks for that info. Not having EGR is a big advantage since that can be more maintenance than the rest of the engine is. I found a long post by someone who had a lot of knowledge and experience with DPF add ons. I think you were commenting there also. He said the key is to get the right installer. Too many of these are done wrong and start fires. I am leaning toward doing this now that I have heard from several people who know how it went for themselves. My other choice is to drive my car over to Blythe and then try to get a load from that area. That would not be fun. 3 hours just to get to the border of AZ and keep the truck there.

 

Yes. A poor guy just posted that he bought a 09 with an ISX Cummins. Right after he bought it he found a crack in the block. Now he is likely facing losing his truck. These aren't called "Cumaparts" for nothing.
I feel sorry for anyone who has to face this issue. I want an old simple engine with no filter. If I have to put on a filter, then it better work right or it will be coming off, and I will just drive in and out of Commiefornia in my car, I guess. Isn't it great when enviro whackos decide what is best for the working man.