I had a 74 Overlander, sob, sob,,,
I think the original one was good for 40 amps. I replaced the one in mine with a 45 amp Intellipower. The fuse panel is integrated on your original univolt, you will need to add one if you go with just about any of the newer converters. Good thing anyhow because the old glass fuse holders are trouble. I put in a six circuit ATC fuse panel that I got at NAPA auto parts. It uses the new blade type auto fuses. You won't be able to use the old amp scale or the AC indicator light in your Control Center.