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How do I positively ID my distributor?

How do I positively ID my distributor?

DaveMueller

Active Jeeper
Posts
272
Media
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Thanks
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Location
Ohiopyle, PA
Vehicle(s)
'76 CJ5 with an '88 258 from a YJ.
AMC20, D30, D20, T150.
I'm planning my future route of an ignition upgrade.

My '76 CJ5 has a 1974 motor. The first thing I did when I bought it this Summer was a standard tune-up: plugs, cap & rotor etc. The first cap/rotor I got was for a '76 AMC 258 i6 / 4.2l , but didn't fit. I thought the parts guy said what he gave me was from a '77, but didn't 76 and 77 have the Prestolite distributor? I'm fairly certain the vacuum advance is metal, but could it have been replaced?

So are there any other clues that I can look for to see if I have the Duraspark unit?

Thanks
Dave
 
Post up some pictures. ;)

LG
 
Let's try this...

distributor1.webp
 
Calling 'Posi'. :notworthy:
LG
 
I'm planning my future route of an ignition upgrade.

My '76 CJ5 has a 1974 motor. The first thing I did when I bought it this Summer was a standard tune-up: plugs, cap & rotor etc. The first cap/rotor I got was for a '76 AMC 258 i6 / 4.2l , but didn't fit. I thought the parts guy said what he gave me was from a '77, but didn't 76 and 77 have the Prestolite distributor? I'm fairly certain the vacuum advance is metal, but could it have been replaced?

So are there any other clues that I can look for to see if I have the Duraspark unit?

Thanks
Dave

Looks like a Duraspark to me.

slomo
 

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