I just remembered that I have a NEWLY REBULT FRESH>> BEAUTIFUL 12 bolt rear end out of a 69-72 chevelle. My question is... does this car and my 81 K10 blazer have a close wheel base??? If so, could I use this rear-end for my front diff????? I really would like to.. it is in MINT condition and all I would have to do is change the gears in it... i HOPE!! I would appreciate any help you guys and girls /forums/images/icons/wink.gif could offer.... thanks.