i was going to build a new rear for my 89 k5 but i got to looking at boyce equipment and couldnt help myself.i forgot to ask if i got a ck5 discount, for what its costing me any kind of discount would be nice.hint hint steve!LOL since this is my daily drive i went with the 14SF rear with 4.56 gears and a posi unit. also they had them in the longer version which i like the looks of better. now i just have to wait til it gets here. feels like christmas all over again!!! BIG BLOCK MAN "MORE POWER"!!