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body mount bolt size?

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0-60n4

Active Member
Joined
Nov 17, 2003
Messages
321
I just noticed the body mount for the very front passenger side is missing the bolt. Bushing is still there but no bolt. What is the bolt size I need to get?
 
I believe it's a 3" bolt 10mm or 3/8 will work. There should be thick washers on either side of the bushings to hold them in place.
 
I googled it
"Here are the G-BODY body ,mount bolt specs:

Position 1 uses GM P/N 10049638 (sold ea., 2 needed). Bolt is 12 X 1.75 X 95mm long.
95mm is not common so you have to use 100mm.

Position 3 uses GM P/N 14085301 (sold by pkgs. of 5, 2 needed). Bolt is 10 X 1.5 X 55mm long. Also need two nuts.

Position 2, 4, 6, 7 uses GM P/N 3524497 (sold by pkgs. of 5, 8 needed). Bolts are 10 X 1.5 X 80mm long.

If you buy from a hardware store get 10.8 grade bolts. similar to grade 8"
 
Thanks, got it replaced. Then I noticed the front driver side was very very loose. Only a few threads on. Same for 2nd from the rear on both sides. Looks like someone started replacing them and forgot to tighten them up. Glad I checked on them.
 
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