I've got an 01 GTS. I bought the 1 1/4 after I measured the bolt and agreed that it was as described in the above mentioned post. But, it was not a perfect fit, IMHO. I was only using it to turn over the crank without the spark plugs, and it seemed sloppy. I am concerned that it might be metric. Try a Viper Tech and see what you find out. I am afraid that if you try 250 ft-lb with the 1 1/4, you might round off the damn bolt.
