Centering ring on the flywheel flange

[Knoxes]

I'm trying to order my crank today, but I'm given two options - with a flat flywheel flange or with a centering ring. I've searched all over Jeep Strokers for an answer on this, but can't find one.

It's 2003 WJ and here's a pic of the stock crank



I'm guessing that's a centering ring, but I'm not sure.

[SilverXJ]

I have never heard of this. As far as I know all the 4.2L cranks have the same flange. Given the option I would guess centering ring.

[Knoxes]

RockAuto has a couple of different reman available. It looks like each company offers two - one with and one without the ring. I guess I'll err on the side of ring - assuming that I can have it machined off if it's not right. (That's also assuming that the ring is what I think it is in that pic). It's the right forging number on both cranks.

[IH 392]

ALL '72 and later AMC engines use the centering ring, the change came with the use of the Chrysler transmissions.