What is this hole and cover for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eric67m · 12-30-2007, 04:14 AM

I picked up this cab from CG. "Thanks again Mark" Neither of us could figure out what this is for. The cab is a 1970 very basic model with emissions. Behind the passengers side where the top of a fleetside bedside would hit there is a perfectly drilled/punched 1 7/16 hole. Covering over this hole is a 3 7/16 circle (not very well cut) held on by three sheetmetal screws. The cover is painted the precieved to be original paint color on the underside and was sealed down with black goo / silicone.

Does anyone know what this hole would be for? I know there is a bolt on fleetside beds in approximatly this location. Because of the metal window supports and emission tubes they would have had the bed removed to make this hole, did not make it from the inside.

What would mount here or this be an access for? (I know I'm probably opening myself up for all sorts of comments, so be nice)

mbgmike · 12-30-2007, 04:18 AM

I bet is was a whip antenna for a CB radio and someone covered up the hole later

Riveted1 · 12-30-2007, 04:22 AM

My thoughts exactly.

**special-K** · 12-30-2007, 04:35 AM

I agree.Looks like it was on there when there wasn`t a Fleetside bed mounted.It looks like it was put on when they went from green to white.

mbgmike · 12-30-2007, 04:41 AM

i worked for the Ohio Dept of Natural Resources a long time ago and thats where they placed them. They were green trucks. The only other option is a drain

when you pull it out of a pond.

eric67m · 12-30-2007, 07:11 AM

Thank you everyone. Looks like I will weld it up just like I did to the other antenna hole on the top center of the cab. I'm just used to fleet sides so I wouldn't think of an antenna in that location.

**special-K** · 12-31-2007, 01:25 AM

You can see where it was re-painted once before a bed was added.Maybe the truck was a Stepside,if not a special bed on a cab`n`chassis.

12-30-2007, 04:14 AM	#1
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	What is this hole and cover for? I picked up this cab from CG. "Thanks again Mark" Neither of us could figure out what this is for. The cab is a 1970 very basic model with emissions. Behind the passengers side where the top of a fleetside bedside would hit there is a perfectly drilled/punched 1 7/16 hole. Covering over this hole is a 3 7/16 circle (not very well cut) held on by three sheetmetal screws. The cover is painted the precieved to be original paint color on the underside and was sealed down with black goo / silicone. Does anyone know what this hole would be for? I know there is a bolt on fleetside beds in approximatly this location. Because of the metal window supports and emission tubes they would have had the bed removed to make this hole, did not make it from the inside. What would mount here or this be an access for? (I know I'm probably opening myself up for all sorts of comments, so be nice) Attached Images __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"

12-30-2007, 04:18 AM	#2
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: What is this hole and cover for? I bet is was a whip antenna for a CB radio and someone covered up the hole later

12-30-2007, 04:22 AM	#3
Riveted1 Tasty Cakes! Join Date: Apr 2003 Location: Gilbert, AZ Posts: 2,112	Re: What is this hole and cover for? My thoughts exactly. __________________ I'm a little and a lot Ground beef: A cow with no legs. ---------------- '66 Chevy SWB "Penny" '67 Chevy Big Window SWB- aka "Pearl" '72 Burb- "Betty" "It's not a hearse dammit" '99 Chevy Ext. cab Silverado

12-30-2007, 04:35 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: What is this hole and cover for? I agree.Looks like it was on there when there wasn`t a Fleetside bed mounted.It looks like it was put on when they went from green to white. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

12-30-2007, 04:41 AM	#5
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: What is this hole and cover for? i worked for the Ohio Dept of Natural Resources a long time ago and thats where they placed them. They were green trucks. The only other option is a drain when you pull it out of a pond.

12-30-2007, 07:11 AM	#6
eric67m Registered User Join Date: Apr 2005 Location: Monroe, WA Posts: 298	Re: What is this hole and cover for? Thank you everyone. Looks like I will weld it up just like I did to the other antenna hole on the top center of the cab. I'm just used to fleet sides so I wouldn't think of an antenna in that location. __________________ 67 K10, lwb, fleetside, 327, 4spd, 205, cab and 3/4 frame swap, 14 bolt, big window, and a "rustoleum roll job"

12-31-2007, 01:25 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: What is this hole and cover for? You can see where it was re-painted once before a bed was added.Maybe the truck was a Stepside,if not a special bed on a cab`n`chassis. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

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