Important info for Blazer owners - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71blazerman · 08-04-2003, 02:02 PM

I was under the impression that doublewall and singlewall hardtops had the same bolt pattern, but after getting my doublewall (almost free), I found that it wasn't true. I was a little confused why GM made two different tops in the first place, but I am dumbfounded after the revalation of two different bolt patterns.

I thought that there were board members that had both tops, did you guys modify one of them?

bouncytruck · 08-04-2003, 03:06 PM

I think that 1970blazin just switched from a double to single wall. You might ask him if he had any problems. What year Blazer are you putting it on and what year is the new top off of?

71blazerman · 08-04-2003, 05:42 PM

The top is off a blazer, not sure what year. It was going on my 72 Jimmy. Thanks

bouncytruck · 08-04-2003, 06:41 PM

I wouldn't think so, but could it be a Blazer/Jimmy issue?

FRENCHBLUE72 · 08-04-2003, 06:47 PM

I have a double wall top and two set's of mounting holes, one for the single wall top (has thread boses in bed rail) and what appear's to be drilled holes also.. The double wall top would not bolt threw the boses in the bed rail and the thread boses in the top, would it???

BobbyK · 08-04-2003, 06:53 PM

I know my Blazer's bedrail has 2 sets of holes.One set that's threaded for the single walled top and one set of just holes for the double walled top.

The holes with the rust and primer are the threaded holes.

71blazerman · 08-05-2003, 08:50 AM

My truck is already painted so I modified the top instead of drilling into the bedsides. The bolts thread just fine going up through the double wall, or going down into the singlewall (if I had one).

08-04-2003, 02:02 PM	#1
71blazerman Registered User Join Date: Dec 2002 Location: Omaha Nebraska Posts: 119	Important info for Blazer owners I was under the impression that doublewall and singlewall hardtops had the same bolt pattern, but after getting my doublewall (almost free), I found that it wasn't true. I was a little confused why GM made two different tops in the first place, but I am dumbfounded after the revalation of two different bolt patterns. I thought that there were board members that had both tops, did you guys modify one of them? __________________ 67 Impala SS Conv 66 Caprice 396 No more trucks.... someday though

08-04-2003, 03:06 PM	#2
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	I think that 1970blazin just switched from a double to single wall. You might ask him if he had any problems. What year Blazer are you putting it on and what year is the new top off of? __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

08-04-2003, 05:42 PM	#3
71blazerman Registered User Join Date: Dec 2002 Location: Omaha Nebraska Posts: 119	The top is off a blazer, not sure what year. It was going on my 72 Jimmy. Thanks __________________ 67 Impala SS Conv 66 Caprice 396 No more trucks.... someday though

08-04-2003, 06:41 PM	#4
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	I wouldn't think so, but could it be a Blazer/Jimmy issue? __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

08-04-2003, 06:47 PM	#5
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	I have a double wall top and two set's of mounting holes, one for the single wall top (has thread boses in bed rail) and what appear's to be drilled holes also.. The double wall top would not bolt threw the boses in the bed rail and the thread boses in the top, would it??? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-04-2003, 06:53 PM	#6
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,772	I know my Blazer's bedrail has 2 sets of holes.One set that's threaded for the single walled top and one set of just holes for the double walled top. The holes with the rust and primer are the threaded holes. __________________ 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

08-05-2003, 08:50 AM	#7
71blazerman Registered User Join Date: Dec 2002 Location: Omaha Nebraska Posts: 119	My truck is already painted so I modified the top instead of drilling into the bedsides. The bolts thread just fine going up through the double wall, or going down into the singlewall (if I had one). __________________ 67 Impala SS Conv 66 Caprice 396 No more trucks.... someday though



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