Depends on the year and what type of stuffing box. My 1978 has the standard 1" shaft with a 1-1/2" shaft log and packing box. I put 1/4" GTU in it. Got two wraps to fit. My understanding is some newer boats have 1 7/8" shaft log. I don't know if this effect the packing size.
Also, due to the taper of the hull I had to use exhaust hose for the shaft log and not the proper Algonquin hose.