89 ABS to 2000 WJ Booster - any writeups?

I have searched...and searched. I found a bunch of write ups on a single to dual booster, and from ABS to a 96 booster. But I am looking to get rid of my 89 ABS system and go to a dual booster out of a 2000 WJ. My main question is whether or not I can use the stock Prop valve from my 89? Has anyone done this same swap? Any information or links to threads I may have missed would be greatly appreciated!

http://www.naxja.org/forum/showthread.php?t=924285
http://www.4x4wire.com/jeep/tech/brakes/xj_wjbrakes03/knuckles/index.htm
Enjoy!

Thanks, but both of those are the old single diaphram to a dual booster, and I had seen those.. I need info on the Bendix ABS to dual diaphram. All I really need to know is if I can re-use the proportioning valve from the 89 ABS system.

Update: I used the stock prop valve and it seems to be working fine. The swap was pretty much the same as the 96 booster, but no need for a new brake pedal.

I did the same swap on my 89 which had the bendix abs. Did you take out the spring in the prop. valve? It is a great swap