speedometer adapters and gears

sorry guys but being an 'old muther" i forget to clear box from time to time. anyway using cope racing transmission formula, mopatmat2000, you will need a 39 tooth gear. i have one but don't know if i have 2. i will look when i go to garage bout noon as it will warm up to bout 22 then. rumblefish360, i will get adapters out and reseal them when i go to garage at noon. r4sedan, i got box cleared, go ahead and pm me if you want. as soon as i down load crt formula, i will post it here as it is another tool we all can use, i think. thanks rick w.