1968 Mustang / 289 Auto question

Somebody on this board always seems to know the obscure answer. I am hope this holds true. I have a 1968 Mustang Coupe with Original 289 C4. The Flywheel seems to be a 160 tooth but I can't seem to find a replacement. I only see 157 tooth.

Do I have the right one?
Can I use a 157 tooth?
If so, do I need to replace the starter?

Thanks

yup 157 28oz counterbalance

Just to close this and to help anyone else who may run into this, the 157 tooth flywheel works just fine.

thanks ill file that away for future use