Joe - Can you take pictures and post of your existing "2 rods" coming off the brake pedal pivot bar? A diagram in the 1947-54 Chevy Truck FAM shows the rod from the brake pedal pivot bar to parking brake cable pivot bar to be a single piece. I've also attached a picture grabbed from one of our usual vendors on what they offer as a replacement for that rod assembly as it is a single rod that corresponds to the one in the FAM.

BTW - Is this the "replacement rod set" from Classic Parts you mentioned ordering?
Attachments

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)