Frame rail width? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dutchboy1 · 10-01-2005, 06:06 PM

Hi guys, got a question for you guys. Does anyone have the exact measurements of a 72 4x4 blazer frame across the front wheels and also 76 two wheel drive pickup? I am looking at converting my 4x4 blazer to two wheel drive since I have my jeep to beat around in the brush in. A friend has 76 two wheel drive frame I can get cheap and want to make sure the width would be the same or if I have to find a 72 two wheel drive frame. Thanks for the help!

ascuro · 10-01-2005, 07:12 PM

Someone else posted this link a while back. Useful stuff.

http://www.chuckschevytruckpages.com/framespecs.html

chevy_fatman · 10-01-2005, 11:04 PM

Quote:

Originally Posted by ascuro

Someone else posted this link a while back. Useful stuff.

http://www.chuckschevytruckpages.com/framespecs.html

ascuro, that site hasn't been posted in a while,your join date was 10 days ago, How do you know this site was posted here a while ago? are you using a ghost account now?

ascuro · 10-02-2005, 10:59 AM

Well, then I probably saw it on the CK5 forums. Why the paranoia? Just trying to help out. So sorry, heh.

LUV2XCLR8 · 10-03-2005, 02:36 PM

Quote:

Originally Posted by chevy_fatman

ascuro, that site hasn't been posted in a while,your join date was 10 days ago, How do
you know this site was posted here a while ago? are you using a ghost account now?

Kurt, VTBLAZER, posted it here a little while back, not sure of exact date.

And he, ASCURO, may have been a guest for the last year or so who knows

*72CSTC5* · 10-01-2005, 09:34 PM

It will not work. You need a 2wd Blazer frame

**Classic Heartbeat** · 10-01-2005, 09:54 PM

Lots of guys have converted 4X4 Blazers to 2X4. You will need the frame horns also to use as templates to drill the holes that you will need to drill to mount the front crossmember. You can use one up to 1987. WES www.ClassicHeartbeat.com

*72CSTC5* · 10-02-2005, 11:12 AM

Hey WES I think he wants to use the entire frame setup from the 76 model frame, not just the front crossmember.

marianne · 10-02-2005, 11:16 AM

Dutchboy,

This link might help.

http://67-72chevytrucks.com/vboard/s....php3?t=170798

Marianne and Curt

**Classic Heartbeat** · 10-02-2005, 12:14 PM

72CSTC5 you are wright, he wouldn't want to use the entire frame. Not at least on a 2 wheel drive. That would require the use of a body lift... It would be a lot better to just use just the front crossmember... I hope that I didn't throw confusion into the situation...lol WES www.ClassicHeartbeat.com

dutchboy1 · 10-02-2005, 08:59 PM

Just wondering if the widths of the frames above the front wheels are the same between the 76 2wd pu vs 72 4wd blazer. I know how to handle the rearend (flipping the axle and set pinion angle as a step until fullfour link and air bags) and how to route the steering and such just need to know whether I can utilize the 76 crossmember or if I need to hunt down a 72 crossmember. The chart with the measurements show the frame widths at 28" above the front wheels, whereas measuring my blazer I get roughly 28 1/2" (motor is still in blazer so can't get the tape measure perfectly flat between the two measuring points).

**raggedjim** · 10-03-2005, 10:50 AM

Dutch, it will fit...

Rg

*72CSTC5* · 10-03-2005, 03:02 PM

If you want to just change out the front crossmembers they will fit. I used an 87 suburban crossmember complete in my 2wd Blazer.

dutchboy1 · 10-04-2005, 09:12 PM

Thanks guys for all the info! Want to get my ducks in a row before I tear into a perfectly fine 4x4 to satisfy my streed rod fetish my JEEP Wrangler can't fulfill.

10-01-2005, 06:06 PM	#1
dutchboy1 Registered User Join Date: Oct 2004 Location: Idaho Posts: 10	Frame rail width? Hi guys, got a question for you guys. Does anyone have the exact measurements of a 72 4x4 blazer frame across the front wheels and also 76 two wheel drive pickup? I am looking at converting my 4x4 blazer to two wheel drive since I have my jeep to beat around in the brush in. A friend has 76 two wheel drive frame I can get cheap and want to make sure the width would be the same or if I have to find a 72 two wheel drive frame. Thanks for the help!

10-01-2005, 09:54 PM	#7
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,768	Lots of guys have converted 4X4 Blazers to 2X4. You will need the frame horns also to use as templates to drill the holes that you will need to drill to mount the front crossmember. You can use one up to 1987. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

10-02-2005, 11:16 AM	#9
marianne Registered User Join Date: Sep 2005 Location: Charleston, SC Posts: 51	Dutchboy, This link might help. http://67-72chevytrucks.com/vboard/s....php3?t=170798 Marianne and Curt __________________ 1975 GMC Jimmy Full Convertible 4x4 - For Sale

10-02-2005, 12:14 PM	#10
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,768	72CSTC5 you are wright, he wouldn't want to use the entire frame. Not at least on a 2 wheel drive. That would require the use of a body lift... It would be a lot better to just use just the front crossmember... I hope that I didn't throw confusion into the situation...lol WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

10-03-2005, 10:50 AM	#12
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,583	Dutch, it will fit... Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

10-01-2005, 07:12 PM	#2
ascuro Registered User Join Date: Sep 2005 Location: SoCal Posts: 12	Someone else posted this link a while back. Useful stuff. http://www.chuckschevytruckpages.com/framespecs.html

10-02-2005, 10:59 AM	#4
ascuro Registered User Join Date: Sep 2005 Location: SoCal Posts: 12	Well, then I probably saw it on the CK5 forums. Why the paranoia? Just trying to help out. So sorry, heh.

10-01-2005, 09:34 PM	#6
72CSTC5 Account Suspended Join Date: Nov 2004 Location: Deer Park, Tx. Posts: 2,524	It will not work. You need a 2wd Blazer frame

10-02-2005, 11:12 AM	#8
72CSTC5 Account Suspended Join Date: Nov 2004 Location: Deer Park, Tx. Posts: 2,524	Hey WES I think he wants to use the entire frame setup from the 76 model frame, not just the front crossmember.

10-02-2005, 08:59 PM	#11
dutchboy1 Registered User Join Date: Oct 2004 Location: Idaho Posts: 10	Just wondering if the widths of the frames above the front wheels are the same between the 76 2wd pu vs 72 4wd blazer. I know how to handle the rearend (flipping the axle and set pinion angle as a step until fullfour link and air bags) and how to route the steering and such just need to know whether I can utilize the 76 crossmember or if I need to hunt down a 72 crossmember. The chart with the measurements show the frame widths at 28" above the front wheels, whereas measuring my blazer I get roughly 28 1/2" (motor is still in blazer so can't get the tape measure perfectly flat between the two measuring points).

10-03-2005, 03:02 PM	#13
72CSTC5 Account Suspended Join Date: Nov 2004 Location: Deer Park, Tx. Posts: 2,524	If you want to just change out the front crossmembers they will fit. I used an 87 suburban crossmember complete in my 2wd Blazer.

10-04-2005, 09:12 PM	#14
dutchboy1 Registered User Join Date: Oct 2004 Location: Idaho Posts: 10	Thanks guys for all the info! Want to get my ducks in a row before I tear into a perfectly fine 4x4 to satisfy my streed rod fetish my JEEP Wrangler can't fulfill.



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