Anyone know the thread size for the rear (the one towards the rear of
the vehicle) cap screw that holds the A/C to the mount on the engine on
a 2.1L?  The last shop that worked on my A/C buggered the threads by
cross threading the screw. This looks like a steel threaded insert
pressed into an aluminum bracket. I would like to retap the threads and
put in a new screw.

I know, I know, I can just put in a through bolt with a nut on it, but I
would rather make it as original.

Thanks,

John Rodgers
88 GL Driver