I did a search but am still a little confused, so here's the question. Will a 14 Bolt FF from a 87 K30 bolt into a 91 3/4 ton Suburban 4x4 (came with a 14 Bolt Semi Floater)? If not, anyone know what the spacing is for both? Something tells me "ThatK30Guy" knows this one. Wanna take a stab at it Wes? Thanks in advance guys. Eric M.