It has a howl in third gear only, it stops in a gentle left curve or when you let off the accelerator. Brakes, all new Master cyl. wheel cyd's and shoes, bled and adjusted well. Still it is hard to stop, almost feels like the old machanical brakes. Any ideas or suggestions appreciated.
Worn driveline components. Could be Universals, could be the fact that the drive shaft is bent. Could be that you got a beat ass driveline. Pull it apart and spend way to much money to fix it, or replace it w/ new shit and spend the same. Ball is in your court.
Sounds more like a wheel bearing problem, since it happens in a left turn. A bent torque tube (no driveshaft in a '48, adambomb!) would cause a vibration. The brakes might still not be bled and/or adjusted properly, since they have what sounds like a hard pedal.
I had the exact problem with my 46 fleetline, all completly stock exept a 55 235. It was a wheel bearing. I cant remeber wich side but I belive it would only howl when I turned the opposite way of the one that was bad.
Not trying to throw stones, but their is a drive shaft in the torq tube. The rear doesn't spin on air power from the tranny yoke.
I would suspect the rearend. When you make the left turn the passenger side rear wheel goes slighty faster than the drivers side one so the howl could be caused by the spider gears. Just a guess?
There is a driveshaft-as mentioned, inside the torque tube. The torque tube is there just to make changing the clutch fun and complicate modernizing the car. And maybe help locate the rear end. That's why my '48 has a '57 chevy rear end, and since the original brakes suck, is going to get either 54 chevy or discs on the front.
If it slows you down and stops, then the problem is in the rear-end...I'd suspect frozen pinion... You didn't say if the engine/driveline is stock...do us a favor so those other guys will quit second guessing each other, tell us if it is. R-
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