I was looking at your part Chris but you aren't making them any more. The spindles are from a C4 Corvette. I counted 28 splines which fits the C4 hubs I got to fit the DBR bearing carriers I have. If a different hub would fit for which spindles with CV ends are available I would be happy to get those.
I read here on the forum some time ago that RCR uses a Corvette hub But if they are not C4 the number of splines will be different...Seems things differ from year to year (someone couldn't make up their mind).
I will contact RCR. Perhaps their hub will fit the DBR carriers. I can use what I have for another project so it would not be a total waste of money.