Moog bushings for axle side upper control arm: K3128 or K3166?

Mogul345

TJ Enthusiast
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Joined
Aug 25, 2024
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136
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Los Angeles
I spent an hour or so last evening searching the forum here and Google about this. From my searching it seems that both the front bushing in the axle, and the rear bushing in the arm, are interchangeable. Yet Moog has two separate part numbers, K3128 and K3166. Rockauto says K3128 is for the axle/front side. And a number of threads mention it here as well. but then I found this post that recommends K3166 because the inner sleeve for the bolt has less play?

I checked the Mopar parts catalog linked in another thread and that doesn't even list a bushing part # except for the rear one. So if I were to go Mopar, that'd be the one I'd use, right? So that means I'd choose the K3166 if going Moog, right?

What would you guys do? I'm kind of leaning towards just buying both and telling my mechanic "pick the one that you think is best".

Still annoyed that RockAuto won't ship me the Mopar ones b/c they're missing a prop65 form for CA shipping lol.