Interesting, I'll have to check my 48 and my 52, I am reasonably sure the 52 only has two fuses, and I have never inspected the one on the 48...

I don't know for sure about being the same on cars as trucks, but I would guess so, as each vehicle has identical electrical requirements and essentially the same system, would make sense to have the same fuse holder on the firewall.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-