Shaft size

[breese]

Should have posted here first. Have a 1991 26 cuddy with the cummins 6btam2, 300hp down in Mexico. Forgot to measure the shaft when I put her in the bodega, anyone have an idea of the shaft size? Need to get new shaft zincs befor I go back down. Thanks

[Mistress]

My '92 with Cummins has 1-1/4" shaft. I believe newer ones stepped up to 1.5"

That 300 hp bta likely has a 1.5 shaft, increased at time of engine upgrade.