Restart the rebuild

Reply back from TF on balancer is the ridge is normal and go ahead with install.
I asked about torque specs, TF is 90 lb/ft with loctite. OEM is 135 ??
He said go 90....
Wouldn't the required clamping force be dependent on the threads in the crankshaft and bolt that's used? What does the balancer have to do with it?