I would do it the reverse of what I posted that Dave said about 3.29's.
Start with the stock 3.29 Comp Table, I'd expect it says 3.69 gears. Plug in 3.29 and the tire size then commit with the auto scale on. Poof...
Comp G tables have the correct sprocket ratio of 1:1 and 3.29 FDR. Should just be able to do the opposite of what the 2.93 guys do and just put in 2.93 and click commit.