The kit does not have the fitting /line for the vacuum hubs. The hubs are the same aside from that. I talked with the suspension guys that are doing it for me and they guessed that it would solve the problem.
The only problem I forsee is increased wear on the diff, and wearing out the driveshaft. The shop is going to build me a HD front shaft to replace it. Ugh, it's going to be a long weekend. Thanks for the help.