I'm almost done with my '56 big window restore. In test driving, there are loud whistles coming from thefront of upper doors or windows at 60-70 mph. How do you diagnos where the leaks are and how do you fix the problem? I can't feel any air coming through with my hand.

 

Maybe just hum along while tapping your foot?

 

It's all part of the charm of driving an old truck. If you want quiet, buy a Lexus.

But seriously, folks, there's too many edges, dips and gaps exposed to the airflow that no matter how tight you seal your doors and windows, they'll never be quiet. You can try stuffing paper towels, etc., in the windows and door gaps inside the truck while you work through the process of elimination. You can try putting masking tape over the drip rail leading edges up the A pillar and across the roof edge. But you'll probably find the efforts will be futile. A better suggestion; invest in a better radio.

 

A properly operated smoke machine will identify the leaks.

 

Mid Fifty : hollow core door seals for '56 finally came in ....I have a set on the way to me. They say these are the cat's meow.....we'll see.

 

Fergusonic, let us know how those work out for you.

 

I just received my hollow core 56 gaskets.. I used the hollow core on the 55 and they are fabulous!

Sam

 

You only have ONE whistle? Sweet

 

If you finger it can you get "Dixie"?
Seriously, if you are sure it's the doors, first open them and check all the way around for any holes or openings. Is the weatherstripping in good shape without cracks, folds or compressed sections? Cut some printer paper in thirds the long way, put a strip in the door opening and close the door. If you can pull the paper out easily the weatherstrip is not sealing. Check all the way around. Does it whistle all the time or only when the cowl vent or fan is on? Try temporarily taping over the cowl side louvers and see if that helps, pressurizing the cab will make almost any car whistle, the pickup cab is a small volume so it is especially susceptible to pressurization if the air has no way out.

 

Received my Hollow cores for my '56 today , took the doors off, removed the practically new door seals I had on there and installed the Hollow cores, installed and adjusted doors. Test drive: I'll be,,,,,it stopped the whistling that I had in both doors.....I was pleasantly surprised.

 

Is the hollow core ones formed to shape or just on a roll?

 

how the heck are you getting up to 60 and 70 ?? kilometers ..or miles ??envy ,,envy ..

 

Formed to shape specifcally for '56 door. Seemed to be made from a softer compound but were not any larger in diameter than the solid rubber ones.

 

I had ordered a set a while back but got a refund on my order because they were out of stock. I need to get another order in before you guys buy them all out again.

 

Well I just ordered a set for the 56 part# 3109-56