blazer top rail holes? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rossboss · 03-15-2015, 04:21 PM

Bought a 72 blazer without a top. The top bed rails appear to have way too many holes for whats necessary to mount the top. I need to know what ones I need to fill to make it correct. The ones with the captured nut are a no brainer but how many others are there. A picture would be nice.

jjzepplin · 03-15-2015, 04:24 PM

One set is for a single wall and the other set is for a double wall.

**1rippen6** · 03-15-2015, 05:35 PM

Most 72's have a single wall top that bolt from the top down so you need the ones with the caged nut. Double (had single here) wall top bolts from the bottom up and would need the thru holes so it will depend on which top you have.

bouncytruck · 03-15-2015, 05:40 PM

If you are going to use a soft top, you may need more of the holes. You should make sure you know what top(s) you are going to use before filling the holes.

Dale99 · 03-15-2015, 09:24 PM

My 72 has a double wall.

But agree, it could be multiple things. Single, double, or was drilled for a soft top.

71swb4x4 · 03-15-2015, 09:30 PM

I agree with the others. 1972's are unique, they have hole for both double and single wall tops.

**Tom Vogel** · 03-16-2015, 09:31 AM

Quote:

Originally Posted by 71swb4x4

I agree with the others. 1972's are unique, they have hole for both double and single wall tops.

This ^^^^^

RED72blazer · 03-16-2015, 01:32 PM

Quote:

Originally Posted by 71swb4x4

I agree with the others. 1972's are unique, they have hole for both double and single wall tops.

Not all 72's have this feature.

rossboss · 03-16-2015, 07:20 PM

Are there pins in the top to help line it up with the bed rails and how many total holes are there for both type tops.

**Blazerowner** · 03-16-2015, 09:51 PM

My 72 only has holes for a single wall. I've never see them with both unless someone modified the holes. More than likely it was done because they couldn't find a single wall so they stuck on a double wall which are easier to find and as simple as drilling some holes. The original holes are also oval shaped for adjustment.

**Tom Vogel** · 03-17-2015, 09:28 AM

Quote:

Originally Posted by Blazerowner

My 72 only has holes for a single wall. I've never see them with both unless someone modified the holes. More than likely it was done because they couldn't find a single wall so they stuck on a double wall which are easier to find and as simple as drilling some holes. The original holes are also oval shaped for adjustment.

My 72 has both from the factory. Owned it since 1990.

briank · 03-17-2015, 09:51 AM

My 72 has both sets of factory holes as well.

rossboss · 03-17-2015, 06:42 PM

How many factory holes are there so I can eliminate the ones that aren't needed.

amashal · 03-17-2015, 08:33 PM

My 71 with a double wall top has 6 holes on each bedside. Each 13" apart.

03-15-2015, 04:21 PM	#1
rossboss Registered User Join Date: Dec 2002 Location: pacific north west Posts: 230	blazer top rail holes? Bought a 72 blazer without a top. The top bed rails appear to have way too many holes for whats necessary to mount the top. I need to know what ones I need to fill to make it correct. The ones with the captured nut are a no brainer but how many others are there. A picture would be nice.

03-15-2015, 04:24 PM	#2
jjzepplin Registered User Join Date: Feb 2012 Location: Ruskin Florida Posts: 4,567	Re: blazer top rail holes? One set is for a single wall and the other set is for a double wall. __________________ 70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350

03-15-2015, 05:35 PM	#3
1rippen6 Senior Member Join Date: May 2011 Location: Greencastle PA Posts: 6,807	Re: blazer top rail holes? Most 72's have a single wall top that bolt from the top down so you need the ones with the caged nut. Double (had single here) wall top bolts from the bottom up and would need the thru holes so it will depend on which top you have. Last edited by 1rippen6; 03-16-2015 at 07:39 AM.

03-15-2015, 05:40 PM	#4
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	Re: blazer top rail holes? If you are going to use a soft top, you may need more of the holes. You should make sure you know what top(s) you are going to use before filling the holes. __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

03-15-2015, 09:24 PM	#5
Dale99 Registered User Join Date: Nov 2007 Location: NLR, AR Posts: 1,387	Re: blazer top rail holes? My 72 has a double wall. But agree, it could be multiple things. Single, double, or was drilled for a soft top. __________________ 2008 Sierra k3500 LMM 1994 s10 blazer 4x4 1991 Camaro Vert Rusted in Half RIP 1972 Jimmy 4x4 L05,4L60E,np205http://67-72chevytrucks.com/vboard/s...d.php?t=546364 1967 C10 L6/3tree(dads truck)

03-15-2015, 09:30 PM	#6
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: blazer top rail holes? I agree with the others. 1972's are unique, they have hole for both double and single wall tops. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

03-16-2015, 07:20 PM	#9
rossboss Registered User Join Date: Dec 2002 Location: pacific north west Posts: 230	Re: blazer top rail holes? Are there pins in the top to help line it up with the bed rails and how many total holes are there for both type tops.

03-16-2015, 09:51 PM	#10
Blazerowner Senior Member Join Date: Apr 2006 Location: Yuba City, Ca Posts: 1,955	Re: blazer top rail holes? My 72 only has holes for a single wall. I've never see them with both unless someone modified the holes. More than likely it was done because they couldn't find a single wall so they stuck on a double wall which are easier to find and as simple as drilling some holes. The original holes are also oval shaped for adjustment. __________________ Kirk 72 Blazer CST 4wd highlander

03-17-2015, 09:51 AM	#12
briank Registered User Join Date: Sep 2011 Location: Leland, Il Posts: 1,503	Re: blazer top rail holes? My 72 has both sets of factory holes as well.

03-17-2015, 06:42 PM	#13
rossboss Registered User Join Date: Dec 2002 Location: pacific north west Posts: 230	Re: blazer top rail holes? How many factory holes are there so I can eliminate the ones that aren't needed.

03-17-2015, 08:33 PM	#14
amashal Registered User Join Date: Mar 2008 Location: Allen,TX Posts: 223	Re: blazer top rail holes? My 71 with a double wall top has 6 holes on each bedside. Each 13" apart.



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