Thanks guys for those links. Seems I spent way too much time researching the Super 18 and the drive/driven gear combinations today.

To refresh on the driven gear I bought (448162), it is for SW/SD/PU models. BTW, I will NEVER use a certain Willys parts store in Yuma, AZ again!!

Since my Super 18 is still based on Dana 18 internals, I am going to purchase the A1511 drive gear and see if it aligns with the above driven gear. If not, I will look into one of the other driven gear options we have discussed earlier.

Time to shift gears for now (pun intended) and finish tearing down the right side of the front axle so I can get it all rebuilt.