Steering box and Hydroboost fitting specs

[badriver19]

I have a steering box out of a 80-87 chevy and i am trying to figure out the specs(thread pitch, fitting type, etc.) of the fittings on the box.

I am also looking for the same specs for the inlet/outlet of a hydroboost unit for a 1991, 92, or 93.

I am trying to get some fittings together into -6 AN lines for my hydroboost system.

Any help with this info would be great.

 

[4X4HIGH]

The steering box uses 16mm x 1.5 and 18mm x 1.5 fittings. Earls sells adapter fittings to go from the O-ring to -AN. 991955ERL is the 16mm x 1.5 fitting and 991956ERL is the 18mm x 1.5 fitting and they convert to a -6AN

http://www.holley.com/991955ERL.asp

http://www.holley.com/991956ERL.asp