rear lowering on 72 gmc w/ leaf springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ol yellow 72 · 11-29-2005, 02:32 AM

whats the cheepist and easiest way to lower my gmc 3 inches or so
im gonna cut 1 coil off the front and need ideas for the rear

ol yellow 72 · 11-30-2005, 05:07 AM

ttt

gringoloco · 11-30-2005, 06:04 AM

Shackles will get you 1 1/2" or a flip kit will net you about 5".

Those are the cheap options. Otherwise buy new drop springs or have yours de-arched.

Tx Firefighter · 11-30-2005, 07:49 AM

I've had my rear leaf springs de-arched before at a spring shop. They charged under 100 bucks and lowered them exactly what I asked for. Look in the phone book under "truck spring shops". Think Peterbilt, not Chevrolet...

Also, measure the truck exactly when deciding how much to lower it. I did my Blazer, and one spring had sagged more than the other over the years. They wound up de-arching one spring about 3/4 of an inch more than the other to level the truck out, side to side. Just mark the springs when you remove them and tell the guys which needs to dropped more.

rkarr · 12-05-2005, 12:57 AM

I need help as well...
Long story, but I have a 68 leaf spring K-10 frame that has been converted to 2wd, and I bought the new leaf spring "mounts", as the 2wd were different than the 4wd... I just wish I knew where they belong.... The rivit pattern is different as well...
Please respond if you have any info or any resources!!!!!!!!
BTW, ECE is awesome to deal with!!
Thanks!

ol yellow 72 · 12-05-2005, 01:23 AM

does ne one know if the 73-87 shackles are the same for my 72?

72MARIO · 12-05-2005, 01:56 AM

I dont think the 73 up will fit they newer springs are wider. Early Classics sells a 1.5 drop shackle. No one makes a hanger kit for our trucks Yet.

11-29-2005, 02:32 AM	#1
ol yellow 72 Registered User Join Date: Aug 2005 Location: kentucky Posts: 211	rear lowering on 72 gmc w/ leaf springs whats the cheepist and easiest way to lower my gmc 3 inches or so im gonna cut 1 coil off the front and need ideas for the rear

11-30-2005, 05:07 AM	#2
ol yellow 72 Registered User Join Date: Aug 2005 Location: kentucky Posts: 211	Re: rear lowering on 72 gmc w/ leaf springs ttt

11-30-2005, 06:04 AM	#3
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,920	Re: rear lowering on 72 gmc w/ leaf springs Shackles will get you 1 1/2" or a flip kit will net you about 5". Those are the cheap options. Otherwise buy new drop springs or have yours de-arched. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

11-30-2005, 07:49 AM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: rear lowering on 72 gmc w/ leaf springs I've had my rear leaf springs de-arched before at a spring shop. They charged under 100 bucks and lowered them exactly what I asked for. Look in the phone book under "truck spring shops". Think Peterbilt, not Chevrolet... Also, measure the truck exactly when deciding how much to lower it. I did my Blazer, and one spring had sagged more than the other over the years. They wound up de-arching one spring about 3/4 of an inch more than the other to level the truck out, side to side. Just mark the springs when you remove them and tell the guys which needs to dropped more. __________________ I'm on the Instagram- @Gearhead_Kevin

12-05-2005, 12:57 AM	#5
rkarr Registered User Join Date: Sep 2005 Location: Roseville, CA Posts: 152	Re: rear lowering on 72 gmc w/ leaf springs I need help as well... Long story, but I have a 68 leaf spring K-10 frame that has been converted to 2wd, and I bought the new leaf spring "mounts", as the 2wd were different than the 4wd... I just wish I knew where they belong.... The rivit pattern is different as well... Please respond if you have any info or any resources!!!!!!!! BTW, ECE is awesome to deal with!! Thanks! __________________ Avatar is a pic of "Before"... Just wait.. ---------------- 1969 Fleetside: Shortened frame for SWB, ECE 4-6 drop. ECE SS tank. All new ECE suspension. Rebuilt 12 bolt 3:73 with Eaton Posi. Front and rear disc brakes. Ramjet 350 and 700r-4 trans. 20" Centerline wheels with Kumho 295/45/20 tires (I hope they fit). Progress pics: http://s44.photobucket.com/albums/f2...uck/?start=all ---------------- Seriously... It's nothing a large dose of cash can't fix... Right? After all, I can't take it with me when I go... Just gotta have enough to get there!!!

12-05-2005, 01:23 AM	#6
ol yellow 72 Registered User Join Date: Aug 2005 Location: kentucky Posts: 211	Re: rear lowering on 72 gmc w/ leaf springs does ne one know if the 73-87 shackles are the same for my 72?

12-05-2005, 01:56 AM	#7
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: rear lowering on 72 gmc w/ leaf springs I dont think the 73 up will fit they newer springs are wider. Early Classics sells a 1.5 drop shackle. No one makes a hanger kit for our trucks Yet. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD



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