One thing I did on a whim....one by one, remove the old fuse.  Gently use steel wool to enhance connectivity on both end of fuse and also metal contacts.  And then, add a very thin wipe of Vaseline onto both.  Corrosion protection.  Fuses slid in nicely.  I did this about 5 years ago.  I am glad I did it. Of course, disconnect Negative terminal on Battery before doing this job.

    On Friday, December 9, 2022 at 08:56:25 AM PST, Todd Last <rubatoguy@comcast.net> wrote:  
 
  Or use a glass to mini fuse adapter
https://www.thingsnotable.com/?pgid=l4ybyll1-f81918c3-d39c-4488-9d63-d4508279ded8
 
 
 On 12/6/2022 6:52 AM, Eric Caron wrote:
  
 Hi folks,

If you were to replace the fuses in a 84 would you use never used vintage fuses or new ones?

Do they crumble just from being older or from being in use?

I have both new old ones and new new ones available.

Eric Caron