18" wheels

Hmmm... I looked at the Dr Diff stuff but didn't care fir the caliper used in the 11.75 dia kit... the Cobra 13" caliper is pretty nice though... I'll have to call them to see about hub diameter dimensions as it may make sense to swap to a different kit before I even open the Wilwood one that arrived today...

The caliper with the 11.75” kit is just a stock Mopar single piston. But it’s a 2.75” piston, which is gigantic, and from a math standpoint anyway it has way more clamp force than the Wilwood calipers. Some of that is lost in translation because its a single piston slider vs a fixed.

The hubs with the 13” kits are just under 2.7”, they’re basically an aluminum version of the 73+ Mopar hubs without the rotor attached.