Looks like we lost a lot of posts here, so instead of searching I have to ask- WHAT REAR END IS IN MY 65 SPECIAL WAGON? Seems like a dumb ? I bought a rear end from a later car -71 or something-I guess I should take it apart to count splines and so forth-I ass umed that it was a direct bolt in, but its 1.5" wider and it won't work with the wheel/tire combination I have. Will that one's gears/posi work with current housing and axles or do I have to find a '65 specific posi? Gear ratios are the same, 3.23:1 Help!