Upper Control Arm Bolts

[Michael S.]

Could someone please tell me the dimensions of the bolts mounted into the frome used for attachment of the upper control arms?

Going to hit the Dorman bolt supply as I have 2 different mid-year frames that neeed these bolts and I do not have any loose to compare.

Thanks in advance for the help!

Mike
#11202

[Gene M.]

Re: Upper Control Arm Bolts

they are 7/16-20 fine thread with knurl under the head to bite into the frame. if memory is working they are 2 1/2" long

[Michael S.]

Re: Upper Control Arm Bolts

Thanks for the information and response.

Mike

[Gary B.]

Re: Upper Control Arm Bolts

Mike,

The original upper A-arm to frame bolts on my late-66 are 2.125" long; 7/16 x 20 tpi. The head is too rusty to see the headmark.

Gary

[Michael S.]

Re: Upper Control Arm Bolts

Thanks Gary,

I went to GM today to get the bolts. The parts book now only lists the bolts for 68-79 Corvettes. They are 2 1/2 inches overall in length. I have a good parts guy and that's all they list now so I now have 4 of those bolts. He says there is no reference to the midyear usage in the current and past books they have.

These will work fine since this is not an NCRS resto.

Have a great day!