I realize this topic has been "beat to death", but every combination of hull, engine and transmission yields a different answer. Here it goes:
I have a '94 36 CL with twin 135 Lehmans and BW 5000 trans with a 2.47:1 gear ratio. The factory props are 25.5D X 20P X 1.5" shaft Sone Marine. The prop shop said they were reconditioned 3 times and need to be replaced. They sent the yard 24D X 20P Michigans saying they were equivalent since they had wider blades. It turns out since the shaft was 1.5", they could not get >24D. They can, but it would take 8-10 weeks for a special order.
I see the older 36 CL's had a 24D X 17/18P. The new 24's are on my boat, so my question is; do I just go with the 24's or should I special order he 25's with a 1.5" shaft size?