I am replacing a prop shaft on my Scarab TRS drive and need to either rent or borrow a thread chaser for the lower unit
it is the 4.375" (4 3/8") same as alpha and bravo drives
If anyone has one they would rent or sell please let me know
Thank You
Kevin

Anybody have a good source to buy one?
they are available on ebay but all I really need is the thread chaser not the wrench

JR Marine has them.

http://www.jrmarine.com/products/1015.htm

If threads aren't to bad. Take an old carrier nut and cut with a hack saw lines across the threads at 45 degrees. This will work like a tap.