How can you easily tell how much lift your lift springs are? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

theOnlyLuvshack · 05-10-2013, 01:15 PM

So I need to replace my rear leaf springs which currently also have a 4" BLOCK as well. I bought the blazer from a guy who told me there was 6" suspension lift and 3" body lift (so total of 9")

So...if I remove the 4" block shouldn't that mean that I should order 6" rear leaf springs (to get rid of block)??

..OR should I go with 4" springs and see what happens (perhaps add 1-2" block if needed)??

Trying to keep cost down so don't want to have to keep buying different u-bolts etc...

Pics can be seen here:

http://www.luvshack.org/autos/latest-1972-blazer/

lopemaxx · 05-10-2013, 01:37 PM

i would assume that you need to order the 6 inch spring

theOnlyLuvshack · 05-10-2013, 03:13 PM

thanks, one more clue though. My shocks (I think old discontinued trailmaster) have collapse height of 15.25" and extended 25.25"

Mint68 · 05-11-2013, 05:22 AM

I'm not sure, but maybe if you measured the distance between the wheel center, to the bottom of the wheel arch, someone else could measure their 6" springs the same way to determine if that's what you have.

bigbadchev72 · 05-12-2013, 12:56 PM

A good way to tell is take a string from each eye on the leafspring where the bolt goes through, then measure from the BOTTOM of the spring where it sits ontop of your lift block to string.

theOnlyLuvshack · 05-13-2013, 01:24 PM

Thanks everyone, I have the axle housing out of it right now being fixed, but when I do the eyelet to bottom of springs (not compressed) I am seeing around 10"....thus I would think 4" of compression should be as much as it would go, making it a 6" spring.

thanks again

05-10-2013, 01:15 PM	#1
theOnlyLuvshack Registered User Join Date: Jun 2011 Location: Bozeman, MT Posts: 4	How can you easily tell how much lift your lift springs are? So I need to replace my rear leaf springs which currently also have a 4" BLOCK as well. I bought the blazer from a guy who told me there was 6" suspension lift and 3" body lift (so total of 9") So...if I remove the 4" block shouldn't that mean that I should order 6" rear leaf springs (to get rid of block)?? ..OR should I go with 4" springs and see what happens (perhaps add 1-2" block if needed)?? Trying to keep cost down so don't want to have to keep buying different u-bolts etc... Pics can be seen here: http://www.luvshack.org/autos/latest-1972-blazer/

05-10-2013, 01:37 PM	#2
lopemaxx Registered User Join Date: Feb 2012 Location: Billings, MT Posts: 78	Re: How can you easily tell how much lift your lift springs are? i would assume that you need to order the 6 inch spring __________________ 70 Chevelle SS (clone), 454, 350 auto 71 K5 350, 350 auto, 3" body lift, 35's -_--_--_- ______ _--_--_- /___\|__\____ -_--_-_ \|____\|__\|___] ......_@_ _ _ _ @

05-10-2013, 03:13 PM	#3
theOnlyLuvshack Registered User Join Date: Jun 2011 Location: Bozeman, MT Posts: 4	Re: How can you easily tell how much lift your lift springs are? thanks, one more clue though. My shocks (I think old discontinued trailmaster) have collapse height of 15.25" and extended 25.25"

05-11-2013, 05:22 AM	#4
Mint68 Registered User Join Date: Nov 2004 Location: Nebraska Posts: 762	Re: How can you easily tell how much lift your lift springs are? I'm not sure, but maybe if you measured the distance between the wheel center, to the bottom of the wheel arch, someone else could measure their 6" springs the same way to determine if that's what you have.

05-12-2013, 12:56 PM	#5
bigbadchev72 People know me Join Date: Jun 2007 Location: Hermiston, oregon Posts: 840	Re: How can you easily tell how much lift your lift springs are? A good way to tell is take a string from each eye on the leafspring where the bolt goes through, then measure from the BOTTOM of the spring where it sits ontop of your lift block to string. __________________ 1972 k/5 blazer CST 4X4 Crate 350, th350/205, dana44with trac-loc/14 bolt with detroit locker, 4 wheel discs 4.56s, 8" suspension lift using 73-87springs, 1" zerorate custom front crossmember, HAD CV drivelines and driveshaft e-brake, full cage, PRP seats, Full autometer gauges, 38x14.5x16 Toyo M/Ts, 16x10 Polished aluminum rockcrusher wheels 1967 longbox 4x4, Strong 400/400/208, 44/12bolt 4.10s, 6" lift, 35" Toyo M/Ts on corvette rally wheels

05-13-2013, 01:24 PM	#6
theOnlyLuvshack Registered User Join Date: Jun 2011 Location: Bozeman, MT Posts: 4	Re: How can you easily tell how much lift your lift springs are? Thanks everyone, I have the axle housing out of it right now being fixed, but when I do the eyelet to bottom of springs (not compressed) I am seeing around 10"....thus I would think 4" of compression should be as much as it would go, making it a 6" spring. thanks again Attached Images Last edited by theOnlyLuvshack; 05-13-2013 at 01:29 PM.

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