Hi Gang,
It's been awhile since i've posted here. Still plugging away at restoring my 1969 Convertible 427/390 w/AC. The deeper I go the more I find I need to fix or replace. I need the GM part numbers for two vacuum actuators. The first one is in the box that the heater core sits in (selector assembly # 3949877). The other one is in the box that directs air up, down or both (distribution duct assembly # 3946979). Each of these actuators has two vacuum hoses going to them. They both leak on the shaft side of the actuator so the diaphragm is good but the shaft seal is leaky and I don't suppose that anyone makes the shaft seals.
Thanks for any insight that you can provide.
Bill
It's been awhile since i've posted here. Still plugging away at restoring my 1969 Convertible 427/390 w/AC. The deeper I go the more I find I need to fix or replace. I need the GM part numbers for two vacuum actuators. The first one is in the box that the heater core sits in (selector assembly # 3949877). The other one is in the box that directs air up, down or both (distribution duct assembly # 3946979). Each of these actuators has two vacuum hoses going to them. They both leak on the shaft side of the actuator so the diaphragm is good but the shaft seal is leaky and I don't suppose that anyone makes the shaft seals.
Thanks for any insight that you can provide.
Bill
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