From what I understand the LS1 F-bodys use an 11" Disc, Sprung hub with a 1-1/8" input shaft with 26 splines correct?

If so, I am in need of some help. I have an 89 Corvette I am going to install a clutch in. I need an 11" Sprung hub, 1-1/-26 Disc I have a New pressure plate and TO Bearing so all that is needed is a Disc.

I thought I could use the Ram 310M but it is 11" 1-5/32-26. I don't think the extra 1/32 will be a good thing on the input shaft.

I am curious to see what brands are avail. with the above specifics, I know SPEC does as I was looking at their Stage 3 disc, but my friend bought it last year for $150 and it is now $250. so beofre I finalize my decision I would like to see what else might be avail.

Thanks