Re: GM Corporate 14 Bolt ?????
The 14 bolts didn't come out until '73. If you're looking at an original '69 big block C20 rear end it very likely is a Dana 60. It might have 3.54 gears if it was an auto trans truck. The panhard bar will be shorter than your '66 with the HO52 rear end.
If the rear end you are looking at is indeed a 14 bolt, I have a pair of the trailing arm mounts for them. The typical trailing arm brackets that you buy won't fit as the 14 bolt has a larger axle tube diameter than a 12 bolt.
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