Is there a cat on the '84 Ram? If so does it cause any code lights to come on if removed? Not even sure if the '84 was sophisticated enough to have code lights.

Depending on the state it's from, it may or may not. But if you take it off, it wouldn't throw a code, that didn't come along till OBDII, which your truck is about 12 years too old to have.

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1981 D150 5.2L auto
Next up: Body work
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Thanks Comma it's a Mississippi truck and us old Rednecks probably didn't have to put up with that junk. But what I was really was worrying about is if it threw a damnded code that I would have to stare out. Didn't think it would but thought I would ask before I pulled out the old saw. Again, thank you Comma.

Can you remove the cat on 87-88 rams without a problem?

my 84 does not have a cat and I have no problems. Hope that helps.

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1984 W150 4x4 318ci all stock.
360,000+ miles and still goin' strong!!!!!
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dont worry about cats and codes unless youve got a Magnum. at the ver worst, just check if youve got a sensor AFTER the cat. if not, youre all good. as for emissions i dont know.

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'91 D150, standard cab, standard bed
'63 Rambler American 330

I cut the cat off my 84 and it hasnt set off any code lights. it was so far down the exhaust that it didnt have a sensor