Norm Peterson
Corner Barstool Sitter
Thanks for the link.I would be willing to bet that the ".80/.63" on the 2.66 box are misprints, AFAIK that is not offered off the shelf anywhere.
Dederichs Motorsports or Liberty's Gear would be able to handle the spec/sales/upgrade.
I got my entire package (minus clutch, had already obtained) at Dederichs and they really know what they are doing. http://www.dederichsmotorsports.com
I'm pretty sure that the 2.66/0.80/0.63 gearset is available in the non-XL Magnums (Grassroots Motorsports recently had a T56 article with a whole page of variations), so I can't see it being a major undertaking to offer it in the XLs.
Norm