quick thread question

[diymirage]

found out today one of the boltholes in my 727 transmission is stripped
it is the one that the mount bolts to

pretty sure it takes a 5/8 socket

so, i got to go out and buy a helicoil set, but im not sure what size it is

 

[Unconventional]

https://r.search.aol.com/_ylt=Awr9D...-inserts/RK=0/RS=LeEXoKjMvJZMGYrbz3I6jMNglOE-

Keensert great for aluminium

 

[Murray]

Your description needs to be more clear.

 

[Oldmanmopar]

7/16 14 use a helicoil

 

[Joey4speed]

The HEAD of the bolt and the THREAD of the bolt itself are 2 different things. A simple gauge from HD will tell you the size. Then determine if your thread is coarse or fine. (That is pretty obvious to see).

 

[diymirage]

Your description needs to be more clear.

sorry about that

you know the transmission mount

(its upside down in this picture)

i meant the two bolts that go through the holes and mount it to the transmission tailshaft

(it does look like @Oldmanmopar answered my question allready)

The HEAD of the bolt and the THREAD of the bolt itself are 2 different things.

i get that
i simply added the head size so you guys knew which one i was talking about

 

[Joey4speed]

Ok.
Good luck.

 

[mopowers]

They are 7/16". Mine actually uses studs in that spot.

 

[Oldmanmopar]

7/16 14 bolts have a 5/8 head.

 

[AJ/FormS]

7/16 14 bolts have a 5/8 head.

Well, no, in Canada they have 16mm heads. A size never before seen in my toolbox until Canada forced me to buy one. You know, when we got bombed by the Metric System. But as you know. 1 of 16mm in your toolbox is never enough so I ended up with 4 new 3/8 drive sockets, 2 new 1/2 drive sockets, and a handful of wrenches. Boy was I a DA, 16mm is .6299inch, verses .6250 in standard. So all those 16s are languishing in the spares drawer, along with the 19mms and the 13s, and the 8s.

 

[Joey4speed]

Yea. I hated to buy Metric tools as a young mechanic.
But, I had no choice since most US cars in the 80s started using metric. I remember the GM metric bolt heads were actually Blue.
My 1/2 inch wrench on the 13mm bolts only carried me so far, lol.

 

[Demonracer]

Metric tools, the bane of my existence, but necessary. LOL

 

[AJ/FormS]

Those blue bolts IIRC had metric heads and standard threads; a hybrid bolt, for a one or two year deal up here.