Single vs Double wall Tops - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72armyswbtruck · 03-28-2006, 08:56 PM

How can you tell the dif, does anyone have some pics please I want to know

LUV2XCLR8 · 03-28-2006, 09:05 PM

Double - Bolts from the bottom up, 1st pic I will post

Single - Bolts from the top down, 2nd pic I will post

Single - Also has a interior dome light like a P/U truck

You will also notice the thickness around the Window

obsesive23 · 03-28-2006, 09:06 PM

The difference is the way they are bolted down. I think single bolts from the top down and double wall bolts from the bottom up?

72armyswbtruck · 03-28-2006, 09:11 PM

OK, next question then which one is a better top?

LUV2XCLR8 · 03-28-2006, 09:21 PM

Quote:

Originally Posted by 72armyswbtruck

OK, next question then which one is a better top?

Single is about 5 times as hard to find as a Double

teeitup · 03-28-2006, 11:10 PM

Singles are better IMO and their lighter when taking them off an on!!!!!!!!!!!!!!!!!!!!

hotrodhomi · 03-29-2006, 12:50 AM

was the single wall and double wall available as an option for every year or are they year specific?

71jimmy · 03-29-2006, 03:27 AM

Quote:

Originally Posted by hotrodhomi

was the single wall and double wall available as an option for every year or are they year specific?

Double wall tops were available for all years.

Single wall tops were only available as an option in '72.

Mounting holes between the two types of tops do not match up. In other words, if your rig had a double wall top and you put a single wall top on, you will need to drill new holes to mount the top. Same if you go the other way.

Which is better, it's an idividual choice. Some say the single wall top because they are lighter, not by much though. Double wall tops have a problem with the top layer "denting in", due to degradation of the fiblerglass over time. But I've seen single wall tops with "dents" too.

vtblazer · 03-29-2006, 07:16 AM

Quote:

Originally Posted by 71jimmy

Mounting holes between the two types of tops do not match up. In other words, if your rig had a double wall top and you put a single wall top on, you will need to drill new holes to mount the top.

How true...

Now I gotta drill my bedsides.

I found/purchased a single wall top because it saves me from having to remove the inner panels everytime I install/remove the hard top.

hotrodhomi · 03-29-2006, 12:13 PM

I have a single wall top on my blazer. I thought that most of them came with one until I read this.

Tynee · 03-29-2006, 01:06 PM

Quote:

Originally Posted by 72armyswbtruck

OK, next question then which one is a better top?

The other thing to consider, if you live in colder climates, is that the single wall's allow condensation to build up on the inside of the top, and then drip down on your head. I've never heard of this with a double.

LUV2XCLR8 · 03-29-2006, 04:58 PM

Quote:

Originally Posted by 71jimmy

Mounting holes between the two types of tops do not match up. In other words, if your rig had a double wall top and you put a single wall top on, you will need to drill new holes to mount the top. Same if you go the other way.

Some rigs, like "GQ" came factory w/ both sets of holes

Pop's72 · 03-29-2006, 05:25 PM

Quote:

Originally Posted by 71jimmy

Double wall tops were available for all years.

Single wall tops were only available as an option in '72.

Mounting holes between the two types of tops do not match up. In other words, if your rig had a double wall top and you put a single wall top on, you will need to drill new holes to mount the top. Same if you go the other way.

Quote:

Originally Posted by LUV2XCLR8

Some rigs, like "GQ" came factory w/ both sets of holes

So if we combine the two quotes and knowing that VT's is a 71 can we say that only 72 Blazers came with the two sets of mounting holes? Or would that be ASSuming too much?!?

LUV2XCLR8 · 03-29-2006, 05:28 PM

I think we would need a few more 72 only peeps to confer

blazerparts · 03-29-2006, 06:42 PM

My '72 has one set of holes for the double wall, and slotted holes with sliding nut thingies for the single wall. If I remember correctly the '70 I had only had the holes for the double wall top.

72armyswbtruck · 03-29-2006, 06:59 PM

Wow, this thread has generated alot of new info for me on these tops, although I am not a Blazer man yet, I must finish my Longhorn first, I love these and will own one in oh say about 10 years

cause god knows that's how long it's going to take for me to get my Longhorn lookin sweet.
:smile:

cnshoot · 03-29-2006, 10:35 PM

my 72 only has the slider holes for the single wall top

2wdBlazer · 03-30-2006, 12:13 PM

I've had a few 72's and all had double walls and 1 set of holes.

Burt4x4 · 03-30-2006, 03:36 PM

My 72 had a single wall...not sure if double wall holes are there or not but I use to have a single wall before I gave it away...

hotrodhomi · 03-30-2006, 04:23 PM

Are the rear hatchs the same for the single wall and double?

2wdBlazer · 03-31-2006, 01:41 PM

yes

jcfoote60 · 03-31-2006, 02:30 PM

OK so I am weighing on this one. Last weekend my 16 year old son and I removed the double wall from my 69 and set it outside the shop. Not a bad lift for the 2 of us....then we picked up my single wall from a 72 to test fit in on my 69 and holy moly, it was all we could do to lift it into place! So I have heard on these kinds of posts that double walls are heavier?? not so in this case, I even asked my son which he thought was heavier and he said no question the single wall was heavier...also I was in a conversation with a guy in Oregon who has tons of pickup and some blazer stuff and he said that single wall tops were only available as an option for last half of 1972 model year run, because GM was getting the next generation tops ready for the 73 and up model that was removable. It made sense if you look at the 2nd gen blazer tops they are constructed almost identical to our single wall tops.

JC

LUV2XCLR8 · 03-31-2006, 04:55 PM

JC, sound like you have them mixed up to me, the single is way lighter
of the 2 I own, one of each, I can remove the single by myself, it was
all we could do to remove the double w/ 2 full grown men, got pic's ?

crzngmychvy · 04-01-2006, 12:49 PM

My 72 only has holes for a single. Man, I feel funny not having posted in so long. I have a bunch of great stuff to share, just need the time to post it all. Maybe within the next few weeks...

03-28-2006, 08:56 PM	#1
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Single vs Double wall Tops How can you tell the dif, does anyone have some pics please I want to know __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-28-2006, 09:05 PM	#2
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,476	Re: Single vs Double wall Tops Double - Bolts from the bottom up, 1st pic I will post Single - Bolts from the top down, 2nd pic I will post Single - Also has a interior dome light like a P/U truck You will also notice the thickness around the Window Attached Images __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T Last edited by LUV2XCLR8; 03-28-2006 at 09:07 PM.

03-28-2006, 09:06 PM	#3
obsesive23 Who me? Join Date: Jun 2004 Location: Bothell WA Posts: 640	Re: Single vs Double wall Tops The difference is the way they are bolted down. I think single bolts from the top down and double wall bolts from the bottom up? __________________ Living the dream 72 2WD Blazer, under going porter built surgery 67 GT Mustang fastback 67 Mustang coupe C/S clone 64 Falcon sprint hardtop

03-28-2006, 09:11 PM	#4
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Single vs Double wall Tops OK, next question then which one is a better top? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-28-2006, 11:10 PM	#6
teeitup Just like to part out trucks!! Join Date: Nov 2001 Location: Meriden, Ks-North of Topeka 10 miles Posts: 27,396	Re: Single vs Double wall Tops Singles are better IMO and their lighter when taking them off an on!!!!!!!!!!!!!!!!!!!! __________________ 67 Chev swb stepside 4x4 283 4 speed SOLD 72 blazer 4x4 4 speed Cheyenne 72 GMC swb 4x4 fleet 4 speed, original paint 1958 Cameo (one of 1405 built, it was my dads) 2020 chevy Apex 4x4 crew cab 1969 Z28 with the 302 1980 chevy swb 4x4 1964 chevell Malibu SS 1976 K20, sold new originally out of my dads chevy dealership Members that I've met, over 200 probably closer to 300 in the 12 years I've been on this site, everyone I met "It was a pleasure"

03-29-2006, 12:50 AM	#7
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	Re: Single vs Double wall Tops was the single wall and double wall available as an option for every year or are they year specific? __________________ '72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht

03-29-2006, 12:13 PM	#10
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	Re: Single vs Double wall Tops I have a single wall top on my blazer. I thought that most of them came with one until I read this. __________________ '72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht

03-29-2006, 05:28 PM	#14
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,476	Re: Single vs Double wall Tops I think we would need a few more 72 only peeps to confer __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

03-29-2006, 06:42 PM	#15
blazerparts No,I DON'T have Tourett's Join Date: Mar 2005 Location: Reno, NV Posts: 556	Re: Single vs Double wall Tops My '72 has one set of holes for the double wall, and slotted holes with sliding nut thingies for the single wall. If I remember correctly the '70 I had only had the holes for the double wall top. __________________ '72 K5 CST 350/350 Daily Driver '69 GMC3500 Camper Special CST Flatbed 396/400 Upgraded to show truck '69 GMC 2500 L6292, 3spd beater

03-29-2006, 06:59 PM	#16
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: Single vs Double wall Tops Wow, this thread has generated alot of new info for me on these tops, although I am not a Blazer man yet, I must finish my Longhorn first, I love these and will own one in oh say about 10 years cause god knows that's how long it's going to take for me to get my Longhorn lookin sweet. :smile: __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

03-29-2006, 10:35 PM	#17
cnshoot Registered User Join Date: Jan 2003 Location: minden Posts: 358	Re: Single vs Double wall Tops my 72 only has the slider holes for the single wall top __________________ 72 cst 2wd blazer sb soon to have tilt manual 72 gmc swb fleet 2wd bb air tilt auto 93 c/3500 crew-cab dually 03 chevy suburban LT quadrasteer c/2500 4x4

03-30-2006, 12:13 PM	#18
2wdBlazer The Blazer King Join Date: Sep 2000 Location: Valrico, Fl (Tampa) Posts: 1,213	Re: Single vs Double wall Tops I've had a few 72's and all had double walls and 1 set of holes. __________________ 72 2wd Blazer. Its the superbichinest, megacoolinest, superflowinest.

03-30-2006, 03:36 PM	#19
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: Single vs Double wall Tops My 72 had a single wall...not sure if double wall holes are there or not but I use to have a single wall before I gave it away... __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

03-30-2006, 04:23 PM	#20
hotrodhomi Registered User Join Date: Apr 2004 Location: Sacramento Posts: 3,737	Re: Single vs Double wall Tops Are the rear hatchs the same for the single wall and double? __________________ '72 2wd blazer, bagged w/ watts link & EDC '72 C10 "Lowered Farm Truck" STOLEN 5-18-11 '66 impala ht Last edited by hotrodhomi; 03-30-2006 at 04:23 PM.

03-31-2006, 01:41 PM	#21
2wdBlazer The Blazer King Join Date: Sep 2000 Location: Valrico, Fl (Tampa) Posts: 1,213	Re: Single vs Double wall Tops yes __________________ 72 2wd Blazer. Its the superbichinest, megacoolinest, superflowinest.



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03-31-2006, 02:30 PM	#22
jcfoote60 Active Member Join Date: Jun 2005 Location: Idaho Posts: 263	Re: Single vs Double wall Tops OK so I am weighing on this one. Last weekend my 16 year old son and I removed the double wall from my 69 and set it outside the shop. Not a bad lift for the 2 of us....then we picked up my single wall from a 72 to test fit in on my 69 and holy moly, it was all we could do to lift it into place! So I have heard on these kinds of posts that double walls are heavier?? not so in this case, I even asked my son which he thought was heavier and he said no question the single wall was heavier...also I was in a conversation with a guy in Oregon who has tons of pickup and some blazer stuff and he said that single wall tops were only available as an option for last half of 1972 model year run, because GM was getting the next generation tops ready for the 73 and up model that was removable. It made sense if you look at the 2nd gen blazer tops they are constructed almost identical to our single wall tops. JC

03-31-2006, 04:55 PM	#23
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,476	Re: Single vs Double wall Tops JC, sound like you have them mixed up to me, the single is way lighter of the 2 I own, one of each, I can remove the single by myself, it was all we could do to remove the double w/ 2 full grown men, got pic's ? __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

04-01-2006, 12:49 PM	#24
crzngmychvy "1972 C5" Join Date: Jul 2004 Location: SoCal Posts: 729	Re: Single vs Double wall Tops My 72 only has holes for a single. Man, I feel funny not having posted in so long. I have a bunch of great stuff to share, just need the time to post it all. Maybe within the next few weeks... __________________ - 72 2wd Blazer ...sold... 2wd Blazer Page

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