Should these holes be here? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72gmcshorty · 10-21-2011, 12:09 PM

Is there supposed to be a hole in the track where the window sits? There is a hole on both sides of the cab. Seems like a good idea to keep water from rotting the channel but at the same time it means water might drip into the tub...

72gmcshorty · 10-21-2011, 12:10 PM

The hole between the 2 bolts...

BobbyK · 10-21-2011, 01:23 PM

Yes, they are there from the factory

Firebirdjones · 10-21-2011, 04:09 PM

Yes leave them there. They don't drip into the tub however.
If I remember right they just drip into the cowl which drains out of the bottom of the truck behind the fenders.

Important to keep it all clean from debri, or it will rust for sure.

71stroker · 10-23-2011, 02:44 PM

They are there from the factory so if the windshield gasket leaks your dash doesnt collect water. They do in fact drain inside the tub though.
If your truck is parked just right it will drip on the fuse box or emergency brake mechanism and also gets the dimmer switch wet.

72gmcshorty · 10-23-2011, 05:31 PM

thats probably why my driver floor rusted away

Firebirdjones · 10-23-2011, 07:00 PM

If that is indeed the case then that's the dumbest design I've heard of.

If GM were smart they could of at least had a nipple under the hole to connect a small drain hose and direct it to a less important place like,,,,,,OUTSIDE THE TRUCK

I've seen it on other cars, and this would seem to be a prime candidate.

10-21-2011, 12:09 PM	#1
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Should these holes be here? Is there supposed to be a hole in the track where the window sits? There is a hole on both sides of the cab. Seems like a good idea to keep water from rotting the channel but at the same time it means water might drip into the tub... __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

10-21-2011, 12:10 PM	#2
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Re: Should these holes be here? The hole between the 2 bolts... Attached Images __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

10-21-2011, 01:23 PM	#3
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	Re: Should these holes be here? Yes, they are there from the factory __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

10-21-2011, 04:09 PM	#4
Firebirdjones Registered User Join Date: Oct 2009 Location: Prescott, Arizona Posts: 2,396	Re: Should these holes be here? Yes leave them there. They don't drip into the tub however. If I remember right they just drip into the cowl which drains out of the bottom of the truck behind the fenders. Important to keep it all clean from debri, or it will rust for sure.

10-23-2011, 02:44 PM	#5
71stroker Registered User Join Date: Apr 2008 Location: Burney, California Posts: 50	Re: Should these holes be here? They are there from the factory so if the windshield gasket leaks your dash doesnt collect water. They do in fact drain inside the tub though. If your truck is parked just right it will drip on the fuse box or emergency brake mechanism and also gets the dimmer switch wet. __________________ 1971 K10 1/2 ton short fleetside, 4 in. lift, sm465/np205, 383 waiting to go in. 1972 K10 short fleetside converted to 3/4 ton, 12 in. lift, t.350/np205, sbc 350. 1970 C10 short fleetside, saginaw 3 spd, no motor. 1971 GMC 3/4 ton 2wd suburban parts truck.(gutted) 1970 GMC 1/2 ton 4wd suburban t.350/np205 no motor parts truck.

10-23-2011, 05:31 PM	#6
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Re: Should these holes be here? thats probably why my driver floor rusted away __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

10-23-2011, 07:00 PM	#7
Firebirdjones Registered User Join Date: Oct 2009 Location: Prescott, Arizona Posts: 2,396	Re: Should these holes be here? If that is indeed the case then that's the dumbest design I've heard of. If GM were smart they could of at least had a nipple under the hole to connect a small drain hose and direct it to a less important place like,,,,,,OUTSIDE THE TRUCK I've seen it on other cars, and this would seem to be a prime candidate.



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