leaf spring question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

makovai · 05-19-2006, 01:57 PM

What i do know is the 72 blazer has a 46" front spring and 52" rear spring.

I was told the 73-up has a 50" front and a ? rear.

Does anyone know the exact length of both front and rear of the next gen blazers?

I'm still running stacked blocks in the rear and i want to do something different with it. so i'm looking at used springs but I'm not sure what other springs will fit the rear.

orange72blazer · 05-19-2006, 02:47 PM

The rear springs are 52" the same on most 69-87, but some have 56" rear springs so you will have to measure.

makovai · 05-19-2006, 03:47 PM

Quote:

Originally Posted by orange72blazer

The rear springs are 52" the same on most 69-87, but some have 56" rear springs so you will have to measure.

meaning if i find a used lift kit for a 73-87 rig there is (if it has arched rear springs) a good chance they will fit?

orange72blazer · 05-19-2006, 04:07 PM

Yes, just measure straight across from spring eye to spring eye and it should be either 52" or 56" most that i've seen are 52".

makovai · 05-22-2006, 10:51 AM

So i get a phone call for the 4" springs i'm trying to sell and the guy wants to know how long they are so i actually measure them and they are only 44", i measured on the truck and they are 44" as well, so now i'm confused, where does the 46" come in?

That was measure from bolt center to bolt center.

detroit72k5 · 05-22-2006, 11:35 AM

With the spring uninstalled, I think it measures 44". Once it flexes down, when installed, the rear coupler bracket that holds the spring swings back about 2 inches, I think that's when it measures 46".

makovai · 05-22-2006, 12:02 PM

Quote:

Originally Posted by detroit72k5

With the spring uninstalled, I think it measures 44". Once it flexes down, when installed, the rear coupler bracket that holds the spring swings back about 2 inches, I think that's when it measures 46".

hmmmm....cause it measures 44" on my truck as well.

orange72blazer · 05-22-2006, 08:53 PM

Quote:

Originally Posted by makovai

So i get a phone call for the 4" springs i'm trying to sell and the guy wants to know how long they are so i actually measure them and they are only 44", i measured on the truck and they are 44" as well, so now i'm confused, where does the 46" come in?

That was measure from bolt center to bolt center.

Where did you get 46" from? All of my front springs measure about 43 1/2 ". So i would say 44" is the right number.

makovai · 05-22-2006, 11:57 PM

i got 46" from the board as well as the 4wd shop...... the rear does measure 52, but i actually get 43 1/2 as well, i just rounded it up to 44.

**special-K** · 05-23-2006, 08:08 AM

Don`t let this confuse you.Just know what they came off of.The spring length
is all the same on all models`73-up front springs.Same with the rears 1st gen.all the way to the end of 2nd gen.and pickups.The Suburbans had longer springs in the rear.You can always pick a lift kit company`s brain,then buy used.

makovai · 05-23-2006, 10:38 AM

Quote:

Originally Posted by special-K

Don`t let this confuse you.Just know what they came off of.The spring length
is all the same on all models`73-up front springs.Same with the rears 1st gen.all the way to the end of 2nd gen.and pickups.The Suburbans had longer springs in the rear.You can always pick a lift kit company`s brain,then buy used.

So if i want a set of 4" arched springs for the rear i can get them from just about any blazer/truck through the early 80's?

05-19-2006, 01:57 PM	#1
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	leaf spring question What i do know is the 72 blazer has a 46" front spring and 52" rear spring. I was told the 73-up has a 50" front and a ? rear. Does anyone know the exact length of both front and rear of the next gen blazers? I'm still running stacked blocks in the rear and i want to do something different with it. so i'm looking at used springs but I'm not sure what other springs will fit the rear. __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's

05-19-2006, 02:47 PM	#2
orange72blazer Registered User Join Date: Dec 2003 Location: West Michigan Posts: 447	Re: leaf spring question The rear springs are 52" the same on most 69-87, but some have 56" rear springs so you will have to measure. __________________ 1972 Chevy Blazer 1997 GMC Sierra 2009 Chevy Tahoe

05-19-2006, 04:07 PM	#4
orange72blazer Registered User Join Date: Dec 2003 Location: West Michigan Posts: 447	Re: leaf spring question Yes, just measure straight across from spring eye to spring eye and it should be either 52" or 56" most that i've seen are 52". __________________ 1972 Chevy Blazer 1997 GMC Sierra 2009 Chevy Tahoe

05-22-2006, 10:51 AM	#5
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	Re: leaf spring question So i get a phone call for the 4" springs i'm trying to sell and the guy wants to know how long they are so i actually measure them and they are only 44", i measured on the truck and they are 44" as well, so now i'm confused, where does the 46" come in? That was measure from bolt center to bolt center. __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's

05-22-2006, 11:35 AM	#6
detroit72k5 Registered User Join Date: Nov 2003 Location: Pontiac, MI Posts: 31	Re: leaf spring question With the spring uninstalled, I think it measures 44". Once it flexes down, when installed, the rear coupler bracket that holds the spring swings back about 2 inches, I think that's when it measures 46".

05-22-2006, 11:57 PM	#9
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	Re: leaf spring question i got 46" from the board as well as the 4wd shop...... the rear does measure 52, but i actually get 43 1/2 as well, i just rounded it up to 44. __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's

05-23-2006, 08:08 AM	#10
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: leaf spring question Don`t let this confuse you.Just know what they came off of.The spring length is all the same on all models`73-up front springs.Same with the rears 1st gen.all the way to the end of 2nd gen.and pickups.The Suburbans had longer springs in the rear.You can always pick a lift kit company`s brain,then buy used. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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