Frt Leaf sprg 4x4 help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Murphy IRE · 07-31-2012, 01:42 PM

Here are pics of my current front leaf springs. As always she does fine off road, but on the Hiways, she as a small chatter type bounce/vibration. The driver's side leaf has gone concave and the right side is flat. The rear sets have plenty of spring and have a normal look. Are the front leafs supposed to be flat or are these dead? I had them worked on two years ago, but I think they have lost their spring. Should I replace? I have the std "highboy" suspension. I'm running 255 85r16 tires and I don't have any clearance problems. Thanks in advance.

**lolife99** · 08-01-2012, 07:51 AM

Anyone?

jjzepplin · 08-01-2012, 08:11 AM

Chatter is not likely to be from the springs. Most likely from a warped rotor or bad tire or balance problem. However.. your springs should be about flat for stock. I would take it back to whoever "worked" on your springs and get that fixed. Also look into a stabilizer. They help a bunch on bigger than stock tires and stock.

**N2TRUX** · 08-01-2012, 10:29 AM

Murphy IRE I'm going to move this to the 4x4 forum to see if you get a more input.

OLDCHEV4X4 · 08-01-2012, 10:38 AM

Never saw a stock setup with that many springs.
They are flat or negative arch when stock. And I agree, springs dont cause chatter or vibration. Mabey a wore out shock, spring bushings, tire out of balance, loose or bad wheel bearing, ball joint, etc. Jack it up and start pulling , prying, and wiggling stuff till you find the culprit.

Murphy IRE · 08-01-2012, 12:49 PM

Shocks are 1yr old Rancho 5000. I'll check the wheel balance and then start playing. I'll take it back to the spring place and have them check out the difference between the two sides.

**Stocker** · 08-01-2012, 03:40 PM

Quote:

Originally Posted by OLDCHEV4X4

Never saw a stock setup with that many springs.

Agreed. Those 5-leaf springs look about the same as my 2.5" Softrides.... about the same gap to the rubber bumpstops too, though I think my gaps may be a bit larger.

obijuan · 08-01-2012, 07:25 PM

youve got red poly bushings, those are definately aftermarket. and a little wore out.

describe the noise in ten words or less lol. and just because those shocks are a year old doesnt mean they are still good.

OldCreek · 08-02-2012, 12:32 PM

With 5 leafs in that driver side pack I'm surprised it has gone negative....take it apart and see it a leaf if cracked/broken. The stock 2 and 3 leaf packs I've seen have gone negative, however. I have a 4 leaf pack that is flat.

Check your ball joints, btw....all of them.

Rebalance your wheels and, remember, you're riding on MTRs!

Murphy IRE · 08-02-2012, 12:56 PM

All good advise, Iwill will keep you posted as I get the work done.

Quote:

obijuan
describe the noise in ten words or less lol.

No Noise just a constant vibration/bumpy ride; worsens as speed increases.

69GWC · 08-02-2012, 05:26 PM

Did you swap tires from front to back to rule out a bad tire or bad rim?
Posted via Mobile Device

07-31-2012, 01:42 PM	#1
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Frt Leaf sprg 4x4 help Here are pics of my current front leaf springs. As always she does fine off road, but on the Hiways, she as a small chatter type bounce/vibration. The driver's side leaf has gone concave and the right side is flat. The rear sets have plenty of spring and have a normal look. Are the front leafs supposed to be flat or are these dead? I had them worked on two years ago, but I think they have lost their spring. Should I replace? I have the std "highboy" suspension. I'm running 255 85r16 tires and I don't have any clearance problems. Thanks in advance. Attached Images

08-01-2012, 07:51 AM	#2
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,685	Re: Frt Leaf sprg 4x4 help Anyone? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

08-01-2012, 08:11 AM	#3
jjzepplin Registered User Join Date: Feb 2012 Location: Ruskin Florida Posts: 4,551	Re: Frt Leaf sprg 4x4 help Chatter is not likely to be from the springs. Most likely from a warped rotor or bad tire or balance problem. However.. your springs should be about flat for stock. I would take it back to whoever "worked" on your springs and get that fixed. Also look into a stabilizer. They help a bunch on bigger than stock tires and stock. __________________ 70 swb 4x4 406sbc 700r4 203/205 d60/14blt locker yadda yadda http://67-72chevytrucks.com/vboard/s...88#post6935688 Yeller 72 Blazer 2wd conversion project "No Daggum Money" http://67-72chevytrucks.com/vboard/s...d.php?t=550804 LS1-T56 3.73 LSD super budget build Blanco-2014 Sierra SWB https://67-72chevytrucks.com/vboard/...d.php?t=810350

08-01-2012, 10:29 AM	#4
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: Frt Leaf sprg 4x4 help Murphy IRE I'm going to move this to the 4x4 forum to see if you get a more input. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

08-01-2012, 10:38 AM	#5
OLDCHEV4X4 Registered User Join Date: Apr 2000 Location: Chester County PA, USA Posts: 1,228	Re: Frt Leaf sprg 4x4 help Never saw a stock setup with that many springs. They are flat or negative arch when stock. And I agree, springs dont cause chatter or vibration. Mabey a wore out shock, spring bushings, tire out of balance, loose or bad wheel bearing, ball joint, etc. Jack it up and start pulling , prying, and wiggling stuff till you find the culprit. __________________ 72 k/10 short wideside 72 k/5 Blazer 72 K/5 Blazer - obstacle course racer 72 custom/10 8' bed 70 K/5 Blazer 67 C-30 GMC Flat bed 86 GMC K2500 Plow Truck 85 GMC K3500 84 M1008 85 M1008 77 G30 Motor Home 72 Sears 12hp Tractor Glenmoore, Pennsylvania

08-01-2012, 12:49 PM	#6
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Re: Frt Leaf sprg 4x4 help Shocks are 1yr old Rancho 5000. I'll check the wheel balance and then start playing. I'll take it back to the spring place and have them check out the difference between the two sides.

08-01-2012, 07:25 PM	#8
obijuan Registered User Join Date: Jun 2012 Location: cibolo tx Posts: 1,033	Re: Frt Leaf sprg 4x4 help youve got red poly bushings, those are definately aftermarket. and a little wore out. describe the noise in ten words or less lol. and just because those shocks are a year old doesnt mean they are still good.

08-02-2012, 12:32 PM	#9
OldCreek Registered User Join Date: Jan 2007 Location: Central Coast California Posts: 1,026	Re: Frt Leaf sprg 4x4 help With 5 leafs in that driver side pack I'm surprised it has gone negative....take it apart and see it a leaf if cracked/broken. The stock 2 and 3 leaf packs I've seen have gone negative, however. I have a 4 leaf pack that is flat. Check your ball joints, btw....all of them. Rebalance your wheels and, remember, you're riding on MTRs! __________________ 1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold 1972 C10 5.3L/4L60E 12bolt 5Lug - Sold 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!! 1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold 1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold) 2003 K2500HD 8.1/Allison1000/NP263

08-02-2012, 05:26 PM	#11
69GWC Registered User Join Date: Jun 2012 Posts: 1,089	Re: Frt Leaf sprg 4x4 help Did you swap tires from front to back to rule out a bad tire or bad rim? Posted via Mobile Device



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