Another solution is to replace the harmonic balancer like I did. The earlier 216 harmonic balancer came with a 5/8 sheave. There are plenty of them out there so getting one shouldn’t be much of an issue. In addition I bought a 5/8 sheave from Speedway to replace the 3/8 one on my alternator.
You will also need a fan blade from a 216 to fit the 216 water pump. Once assembled, it duplicates the stock fan setup that originally came on your truck.
Start a thread in “Truck Parts Wanted’ forum for a harmonic balancer should you decide to go this route. I have had very good luck getting the parts I want using this forum. Good Luck!
Last edited by Phak1; 02/16/2024 12:53 PM.
