273 rockers arm lock kit

Oldmanmopar said
The PRW above don't work with factory ball and cup push rods and the nuts are to tall for the factory adjusters. As Rusty said just get yourself 16 3/8 24 shallow jam nuts and square the top of the rocker
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That's true, but there's almost no other options if you want new nuts and adjusters. Also, it's arguable ball and ball pushrods are a little stronger.