For the sill plates, similar to inserting a copper wire and using the original screw(s)...
Use a nylon cable tie a.k.a. zip tie. Cut a short piece of the nylon material, bend to an L-shape, insert it in the screw hole, put the sill plate in place, and install the screw.
It should look more like this but it appears to be installed correctly.
Does it work properly? Most issues are with the adjustment for each position's detent. That adjustment is at the transmission lever linkage and uses a rod swivel with a bolt.
As @Katfish said, it is the top right fuse. Labeled INSTR↑ ↑LPS for Instrument Lamps on the earlier E-Bodies but labeled FIVE↑ ↑5 on 1973-74 models. Look closely at the fuse block on the side and you will see the fuse size (5A).
Below is a photo of the 1973-74 Challenger fuse block (Part...
I use the Walmart EverStart MAXX Group 27 battery. Was $149.84 in 2023 and they did credit the $12 core charge. Removed the large rectangular caps and decals, installed the Weskcar cap kit/3D-printed Mopar plates on top and the side.
Looks stock for way less $.
I have had an EverStart charger...
I also used the OER carpet but unboxed and laid it out months in advance of the installation so it could relax any wrinkles.
The factory did not use a dimmer switch grommet but my OER carpet came with one so I installed. If you are careful, you can install it and still remove it later with no...
TTI 1-7/8" Satin Ceramic-Coated Headers with full 3" TTI H-Pipe (circa 1999) and Dynomax Super Turbo 3" mufflers.
I agree with @Spyder on turndowns. They blow dirt everywhere and piss off others at shows when the cloud covers their cars.
I actually think it is too loud and may install a second...
And whatever you do, do not run the hose through the cowl "hole". You see that done all of the time but the hose was never meant to go through the cowl lip.
Detail diagram below.
The USCT Driveshaft Loop works with TTI H-Pipe. Probably works with the X-Pipe, too.
My homemade version of the USCT loop worked as well.
USCT on left. My home-fabbed loop on right.
Start a new thread and post a confirmed VIN for the Barracuda you are attempting to find.
It looks like BH23G1B238601 or BH23G1B238671.
Please confirm so we can assist.