Good luck with getting the rear fenders off. Do it slowly and carefully.

Originally, there was no A-D rear fender welt, except on panel-body trucks. Some people put a strip of 30# roofing felt between the fender and the bedsides.

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.