Manual Steering Box Replacement Question

Nope. Stock was cast aluminum.

manualboxes1.jpg

Easiest way to figure out what you have is to count the number revolutions lock-to-lock on the steering wheel or input shaft. 5-1/2 turns lock to lock is a 24:1 box, 3-1/2 turns lock to lock is a 16:1. There's also a mopar performance and Firm Feel gears out there that are 20:1, those are 4-1/2 turns lock to lock. The picture shows small and large sector stock manual boxes. Pretty much everything got the small sector box, the large sector box was for C-bodies and vans.