Trollhole distributor cap (5 Viewers)

[myquestoyota]

I've searched for a while now and can't find the answer. Can someone please tell me which distributor cap I need to buy for my trollhole distributor? I have a 77 FJ40 and it's been running great. But now it's running a bit rough
Haven't started it in a couple of months so I popped the cap and cleaned the contacts but it could use replacement.
Anyone know what cap I need?
Electronic one if it matters