Electrical 1977 CJ5 258 CID Distributor Cap

[WPMages]

I have a 77 model CJ5 with a AMC 258 i6 / 4.2l CID inline six cylinder. I purchased it last December. I understand in 77, Jeep CJs still were using points and condenser ignitions. This CJ has what appears to be a Prestolite Electronic Ignition. I've attached pics. In doing a tune up, I observed excessive wear inside the distributor cap. While it runs pretty darn good, I went to find a replacement cap at NAPA and we were unable to find a new cap for it. Could someone tell me which cap is correct for this distributor? If so, which parts store should I check with? My online searches have led me down a rabbit hole it seems. I'm really hoping to NOT have to install a new distributor. TIA

 

[Jeep Soup]

In the mid 70's, AMC was mix matching ignition parts (and other things)
I had a 1975 DJ-5 that had a Ford Duraspark box, and Chrysler Cap and Rotor.
Good Luck!

 

[grimmjeeper]

77-78 was a transition period for AMC. They switched over fully to Ford duraspark ignition around that time.

That cap looks very similar to the one on my 83. It could be that a previous owner swapped in a distributior from a newer AMC 258 i6 / 4.2l .