[Jack E/NJ]

Some tap & taper talk? Or myths?

https://www.fordbarn.com/forum/showt...=325768&page=2


nickthebandit>>>FYI, a lot of bolts that Ford used were non-standard sizes. For instance, the thread on the end of early ford spindles is 11 / 16"- 18. That is where the hinged tool comes into play. The head stud holes are a tapered fit. Do not chase those holes with standard taps, you will have leaks.>>>


frnkeore>>>The proper tap will be 7/16x14 H-5, where a std tap is 7/16x14 H 3. The last number is the nominal size +/- .0005 so, the -5 means it's .0025 under size.>>>