1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year > 1967 Mustang

Proper length for 67 - 68 battery hold down bolts?

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Murf:
In the current issue of MM Bob Perkins notes that it is common to find that most 67 and 68 Mustangs have battery hold down bolts that are too long, and that the current reproductions as well as many NOS bolts are longer than the original assembly line parts.  Can someone with the "real thing" provide an overall length that is correct for these parts?  Shortening them "about 3/4 of an inch" could be better stated by providing the correct measurement.  I guess most will have a group 24 battery, but if a group 27 was used and it is different than the 24 perhaps someone will provide that length as well?

BillEBobb:
That is a wonderful question!  It's the same thing for '69s as well.  In two different MCA National shows the hold down bolts on my car were "dinged" for being the wrong length, but I have yet to learn what the "right length" actually should be!

CharlesTurner:
Perkin's sent this to me:

67-69 is Ford Part # C5AZ-10756-A    8 5/16 length
70-71 is Ford Part # D0AZ-10756-A    8 5/8 length      The 70 holdown is thicker.

Murf:
Thank you, Charles.  A member of another forum sent me some images of an original and it looks as if there are about ten or twelve threads extending past the top of the nut on the factory issue hold downs on a 68.  The battery tray construction will have an effect on how much thread extends past the nut, so check before cutting if you have a reproduction battery tray. 

DTruitt:
Thanks, Charles.  A few people have told me to cut my hold down bolts down; but I have resisted not knowing the demensions.  This will be helpful.

Murf,
Can you re-post the picture here?

Danny

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