Leaf spring length 74 Blazer - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ItsNotABlazer · 01-07-2007, 02:54 PM

My Blazer is at my parents house and I don't feel like heading out to measure but can someone tell me what length the leaf springs should be on this truck? I found a decent deal on lift kit, wheels, tires, t350/NP205 and was wondering if the springs would work. He says the springs are 52" springs and he had this kit on a chevy truck.

Thanks

b454rat · 01-07-2007, 04:24 PM

47" front 52" rear

ItsNotABlazer · 01-07-2007, 08:49 PM

OK he went out and measured and the springs for the front were roughly 44.5 from eye to eye....is this the proper way to measure?

b454rat · 01-07-2007, 08:58 PM

That is the right way to measure, but 74 should be 47"????? Did you say that it has a lift??? Might have the wrong springs on. See what the shackle angle looks like, if it points forward (towards the front of the truck) then it has the older style springs, pre 72. If it points back, then you got me...

68burb · 01-12-2007, 03:08 PM

Quote:

Originally Posted by b454rat

That is the right way to measure, but 74 should be 47"????? Did you say that it has a lift??? Might have the wrong springs on. See what the shackle angle looks like, if it points forward (towards the front of the truck) then it has the older style springs, pre 72. If it points back, then you got me...

you need to measure ALONG the length of the main spring. just straight across eye to eye will not give the right measurement.

ItsNotABlazer · 01-12-2007, 04:21 PM

Yeah I figured when I saw the differences in mesurement thats probably what he did. I have about decided that the 8" lift might be a tad much since I eventually plan on wheeling in rocks as well as mud so I might just buy new parts instead. I am about to head out to the land and hopefully find out what the measurements are...just for future reference lol. Now if the rain will stay away for just a little while longer....

kylejamers · 01-16-2007, 04:00 PM

the measurement is short because it is measured straight across when the spring is arched, for a proper length
the spring should be measured along the main leaf when the spring is flat/compressed

01-07-2007, 02:54 PM	#1
ItsNotABlazer The full convertible guy Join Date: Jul 2001 Location: Paris Texas Posts: 728	Leaf spring length 74 Blazer My Blazer is at my parents house and I don't feel like heading out to measure but can someone tell me what length the leaf springs should be on this truck? I found a decent deal on lift kit, wheels, tires, t350/NP205 and was wondering if the springs would work. He says the springs are 52" springs and he had this kit on a chevy truck. Thanks __________________ 2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new)

01-07-2007, 04:24 PM	#2
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: Leaf spring length 74 Blazer 47" front 52" rear __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

01-07-2007, 08:49 PM	#3
ItsNotABlazer The full convertible guy Join Date: Jul 2001 Location: Paris Texas Posts: 728	Re: Leaf spring length 74 Blazer OK he went out and measured and the springs for the front were roughly 44.5 from eye to eye....is this the proper way to measure? __________________ 2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new)

01-07-2007, 08:58 PM	#4
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: Leaf spring length 74 Blazer That is the right way to measure, but 74 should be 47"????? Did you say that it has a lift??? Might have the wrong springs on. See what the shackle angle looks like, if it points forward (towards the front of the truck) then it has the older style springs, pre 72. If it points back, then you got me... __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

01-12-2007, 04:21 PM	#6
ItsNotABlazer The full convertible guy Join Date: Jul 2001 Location: Paris Texas Posts: 728	Re: Leaf spring length 74 Blazer Yeah I figured when I saw the differences in mesurement thats probably what he did. I have about decided that the 8" lift might be a tad much since I eventually plan on wheeling in rocks as well as mud so I might just buy new parts instead. I am about to head out to the land and hopefully find out what the measurements are...just for future reference lol. Now if the rain will stay away for just a little while longer.... __________________ 2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new)

01-16-2007, 04:00 PM	#7
kylejamers Registered User Join Date: Jun 2006 Location: washington Posts: 133	Re: Leaf spring length 74 Blazer the measurement is short because it is measured straight across when the spring is arched, for a proper length the spring should be measured along the main leaf when the spring is flat/compressed



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