Here is a very helpful website. It has a huge amount of information including shop manuals. Does this illustration help? http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm1102.htm

Here also is a tech tip from this site. Hood alignment can be a bit tricky so best of luck. http://www.stovebolt.com/techtips/bodywork/ad_hood_alignment.html