'72 Blazer lift - The 1947 - Present Chevrolet & GMC Truck Message Board Network

orangeuavol · 03-18-2004, 11:29 PM

What is the difference between '72 and '73 suspensions? Are the spring mounting locations different?

Beast388 · 03-18-2004, 11:32 PM

The front springs are different lengths, the '72's are shorter. The rears would both be 52" long. So in other words, a lift designed to fit a '73 will not fit a '72.

orangeuavol · 03-18-2004, 11:32 PM

Thanks! That's what I needed to know.

72 CustomCamper · 03-19-2004, 02:22 AM

Actually the front springs are 1/2 inch wider on the 73-up. They are the same length...

Chuck

**JIMs70GMC** · 03-19-2004, 07:01 AM

I believe the front springs are also 3" longer on 73 and up trucks. As for wider I know the 72 and earlier springs are 3" wide at the ends and 2.5" wide in the middle, stock. Most aftermarket springs are 2.5" wide the whole length, at least the following manufacturers: tuff country, rough country and rugged trail(black diamond) and super lift.

Rear springs are the same. It also appears the brackets are the same as well as shock locations up front, the rear shocks could be different depending on weight class(1/2,3/4 etc...). As for the axles up front mounting lcations are the same, brake hoses could be different. In the rear lots of difference concerning mounting pad locations.

orangeuavol · 03-21-2004, 03:29 AM

Thanks!

03-18-2004, 11:29 PM	#1
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 724	'72 Blazer lift What is the difference between '72 and '73 suspensions? Are the spring mounting locations different? __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

03-18-2004, 11:32 PM	#2
Beast388 Suburbans RULE! Join Date: Jan 2000 Location: Clinton, IA 52732 Posts: 689	The front springs are different lengths, the '72's are shorter. The rears would both be 52" long. So in other words, a lift designed to fit a '73 will not fit a '72. __________________ --Ben 71 GMC Suburban 4X4 The "Beast" 388 CID Stroker, TH350, NP205, 8-lug D44, 14BFF w/ Detroit, 4.10:1 gears, 4-Wheel Disks 4" Lift, 35" MT/R's.

03-18-2004, 11:32 PM	#3
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 724	Thanks! That's what I needed to know. __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

03-19-2004, 02:22 AM	#4
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,368	Actually the front springs are 1/2 inch wider on the 73-up. They are the same length... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

03-19-2004, 07:01 AM	#5
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I believe the front springs are also 3" longer on 73 and up trucks. As for wider I know the 72 and earlier springs are 3" wide at the ends and 2.5" wide in the middle, stock. Most aftermarket springs are 2.5" wide the whole length, at least the following manufacturers: tuff country, rough country and rugged trail(black diamond) and super lift. Rear springs are the same. It also appears the brackets are the same as well as shock locations up front, the rear shocks could be different depending on weight class(1/2,3/4 etc...). As for the axles up front mounting lcations are the same, brake hoses could be different. In the rear lots of difference concerning mounting pad locations. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm Last edited by JIMs70GMC; 03-19-2004 at 07:05 AM.

03-21-2004, 03:29 AM	#6
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 724	Thanks! __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.



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