Any way to search wheels by specs? No option on Tirerack.com?
The +73 disks and their 11.75" cousins have a center hub of ~71mm, it depends a little bit on who makes the rotors because some finish them better than others. That's about in line with the center registers on the rear axles, the stock one's I've measured are usually 71.5- 71.7mm. The Dr. Diff BBP axles have a center register of 71mm.
The Dr. Diff 13" brake kits have a hub with a ~68.5mm register (2.7").
A lot of aftermarket rims have a 73.1mm hub bore. Or at least they start out at that, and then will taper down to a smaller wheel cap. The problem, and I was just having this conversation with MuuMuu101, is that the mopar hubs are a lot taller than most modern cars. Meaning, on a lot of modern rims, the mopar hub will stick out past the front surface of the rim. So, to use my Enkei RPF1's as an example, they have a 73.1mm hub bore. That's what's listed as the hub bore spec. But, the wheel cap on the front side of the rim is only 64mm. So, even though my Dr. Diff hubs are only 68.5mm, the have to pass completely through the rim. So, I still had to have the hub bore on my RPF1's machined. I just made it 73mm all the way through, so it was an even surface. But I had to do some custom work to fit a set of wheel caps. The problem then is, just because the hub bore spec is 71mm or larger doesn't necessarily mean the rims will fit without having some work done on the hub bore, because a lot of them taper down. It just depends on the design of the rim. The Legend 5's I run on my Challenger have a huge hub bore, but it wouldn't matter because the rims are thick in the center, the hub is still well within the wheel. The enkei's, not so much.
This is the problem. The hub comes completely through the rim. Used to be common, but not anymore.
And you can see the machine work I had done here. Left side is machined, right side is off the shelf.
The +73 disks and their 11.75" cousins have a center hub of ~71mm, it depends a little bit on who makes the rotors because some finish them better than others. That's about in line with the center registers on the rear axles, the stock one's I've measured are usually 71.5- 71.7mm. The Dr. Diff BBP axles have a center register of 71mm.
The Dr. Diff 13" brake kits have a hub with a ~68.5mm register (2.7").
A lot of aftermarket rims have a 73.1mm hub bore. Or at least they start out at that, and then will taper down to a smaller wheel cap. The problem, and I was just having this conversation with MuuMuu101, is that the mopar hubs are a lot taller than most modern cars. Meaning, on a lot of modern rims, the mopar hub will stick out past the front surface of the rim. So, to use my Enkei RPF1's as an example, they have a 73.1mm hub bore. That's what's listed as the hub bore spec. But, the wheel cap on the front side of the rim is only 64mm. So, even though my Dr. Diff hubs are only 68.5mm, the have to pass completely through the rim. So, I still had to have the hub bore on my RPF1's machined. I just made it 73mm all the way through, so it was an even surface. But I had to do some custom work to fit a set of wheel caps. The problem then is, just because the hub bore spec is 71mm or larger doesn't necessarily mean the rims will fit without having some work done on the hub bore, because a lot of them taper down. It just depends on the design of the rim. The Legend 5's I run on my Challenger have a huge hub bore, but it wouldn't matter because the rims are thick in the center, the hub is still well within the wheel. The enkei's, not so much.
This is the problem. The hub comes completely through the rim. Used to be common, but not anymore.
And you can see the machine work I had done here. Left side is machined, right side is off the shelf.
