please help : advice on lowering kit

[srmorris9]

i have just started a 71 c-10 project and would like to lower my truck with the 2.5" front and 4" rear. i've been looking into diff kits and would like to go with the front spindles/rear coils set. but i've heard that with spindles i would have to change my tie rod ends and ball joints? not really sure, i have the 5 lug front end, and the reason i wanted to go with spindles was to keep the stock ride in the front, and to keep the best ride possible, but if i have to change so many parts maybe it would be easier and more cost effective with coils, i'm not to sure what all i would have to change with the spindles, maybe someone can help