Need help with bolt size
 

I am finally installing my steering column and I don't have all of the bolts. I have the brackets, but not the bolts. I am trying to figure out what size the bolts are that hold the bracket that the lower part of the steering column straps to just outside of the passenger compartment, below the master cylinder. I have circled the holes in blue ink on some pictures I had. Can anyone help me here?

Thank you in advance.

Re: Need help with bolt size
 

This might help: http://67-72chevytrucks.com/vboard/s...&postcount=173

Re: Need help with bolt size
 

one more: http://67-72chevytrucks.com/vboard/s...&postcount=171

Re: Need help with bolt size
 

Column cover (engine side): The column cover mounts over a portion of the toe pan seal. The cover mounts to the firewall using:

• One (GR 5) 1/2" hex bolt and lock washer. The bolt thread is 5/16-18 x 1.1/2, of which 1/2" is shaft. This bolt also secures the brake booster bracket. The column cover slides underneath the booster bracket. NOTE: The bolt head is stamped "ROCKFORD".

• One (GR 5) 1/2" recessed hex tapered bolt with a 1" OD integrated washer. The bolt thread is 5/16-18 x 7/8. NOTE: The bolt head is stamped with an anchor. Very cool bolt BTW, it's not a flange head like most recessed bolts:chevy:

Re: Need help with bolt size
 

Im going out to see if my bolt heads have all those markings

Re: Need help with bolt size
 

Ha ha......Be interesting. "Rockford" kind of threw me off, doesn't seem original, but my guess it is. Pulled two other Rockfords off my truck, same bolt only 1/4" longer. They mount the combination valve.

Re: Need help with bolt size
 

Thanks DeadheadNM and 71CHEVYSHORTBED402. That definitely helps!