The 285/40-18 size is available from Nitto, Continental, Bridgestone, Goodyear, Pirelli and Michelin. Granted, other than Nitto these are pretty expensive tires, but at least there are choices.
BTW, 27" isn't that much taller than the OE tires. The base LX got 215/70-15's which were 26.85" diameter, while the Sport option cars got 225/60-16's which were 26.63" diameter.
Woodman: did you have to use a spacer with the 255/40-18's in front? I've had to run a 4mm spacer with 255/45-17s on a 9" wide wheel. That is something I'd like to get away from with the next set of wheels and tires.
1997 Thunderbird Sport
5.0L-2V PI S/C
540 RWHP / 492 RWTQ
11.28 @ 123 MPH
Last edited by MikeB; 01-07-2016 at 09:30 AM.