1999 Yukon 5.7

[Timqua]

Replacing the Alternator @150,000 original miles .

On the rear left of the alternator is a 10mm threaded hole .
The old alternator had NO BOLT in it.
But all the Videos show it being installed.

Do I need to find one and replace it??
It does not seem to have any purpose….but don’t wanna firetruck up!

Any feedback would be appreciated

 

[Hoesgottaeat2]

When you say “left side” are you referring to driver or passenger side?

There is a bracket that the rear of the alternator is mounted to. If that bracket is missing, then that threaded hole has no use.

 

[Timqua]

Passenger Side

 

[Fless]

Just a note for future reference: