I have searched the internet for answers but haven't had any luck with finding info on switching an 03-06 silverado 2500hd front end to the 99-02 silverado 2500hd style. I found several videos and forums on going from old to new style but nothing on new to old. Reason is I love the older front ends and while they are still around are fairly rare to find in decent condition. Along with the lb7 issues such as injectors and overall power compared to lbz. I was wanting to find a nice lbz to swap to the older front end. any info helps, thanks.