70 C10 drop 4/2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Copperman · 09-28-2015, 09:40 AM

Hi all,
Been on this site for years but don't post much. So much great info here. I wanted to post up my drop. My truck had 22's on it and I rode on them for years and hated them. I bought 4/2 drop springs, drop shocks for the front and adjustable air shocks for the rear. I haul some heavy stuff from time to time. My goal was to level the truck and bring it down a bit.

I started with 17x8 wheels and 255/60-17 tires all around. The rear came down 4" nicely and was straight forward. The only problems I had was my pipes came down on my diff so I had them rerouted. You can see the adjustable panhard bar I made in this pic as well. I ratchet strapped the axle over to center it up and cut/tacked my panhard bar. It moved a bit when the strap was removed so I made the adjustable one. I sleeved a 5/8" bolt to the bar and coupling nut. Worked great.

Replaced the springs in the front by removing the U-bolts and replaced the shocks. To my surprise I already had 2" drop springs and was not happy. So I replaced them with 4" springs to get my 2" drop.

It sit's nice now and drives and handles great.

BossHogg69 · 09-28-2015, 11:20 AM

Nice work and good looking truck - thanks for sharing!

picklito · 09-29-2015, 08:59 PM

Nice write-up. I like how the panhard bar ended up almost parallel to the axle. I'll be doing the same very soon, but only about 2/4 total. Whose springs did you use? Do you like the spring rates?

Copperman · 10-01-2015, 09:36 AM

Quote:

Originally Posted by picklito

Nice write-up. I like how the panhard bar ended up almost parallel to the axle. I'll be doing the same very soon, but only about 2/4 total. Whose springs did you use? Do you like the spring rates?

I originally bought DJM all around but since I needed 4" up front and DJM only has a 2" and 3" I had to put Hotchkis up front.

My ride is like night and day. Much smoother and doesn't handle like a semi truck anymore. I am really happy and its fun to drive.

**lolife99** · 10-01-2015, 12:02 PM

You might want to invest in rear shock relocators.
Look how severe your rear "shock angle'' is.
They no longer compress,... they just pivot on the shock bolts,...

Mmorgan32 · 10-05-2015, 12:19 AM

Where did you get the hotchkis 4" springs?

Copperman · 10-05-2015, 10:27 AM

Quote:

Originally Posted by Mmorgan32

Where did you get the hotchkis 4" springs?

I got everything from Summit

Mmorgan32 · 10-05-2015, 03:21 PM

Did u have any problems getting it aligned after doing a 4 inch drop?

Slow Build · 10-05-2015, 03:46 PM

Looking at your truck I would never have guessed that it's even lowered. It's hard to believe that it's still sitting that high in front with 4" drop springs.

Copperman · 10-05-2015, 04:11 PM

Quote:

Originally Posted by Slow Build

Looking at your truck I would never have guessed that it's even lowered. It's hard to believe that it's still sitting that high in front with 4" drop springs.

AGREED! It put me on my heels a bit when I was planning this out.

09-28-2015, 09:40 AM	#1
Copperman Registered User Join Date: May 2009 Location: Mesa, AZ Posts: 52	70 C10 drop 4/2 Hi all, Been on this site for years but don't post much. So much great info here. I wanted to post up my drop. My truck had 22's on it and I rode on them for years and hated them. I bought 4/2 drop springs, drop shocks for the front and adjustable air shocks for the rear. I haul some heavy stuff from time to time. My goal was to level the truck and bring it down a bit. I started with 17x8 wheels and 255/60-17 tires all around. The rear came down 4" nicely and was straight forward. The only problems I had was my pipes came down on my diff so I had them rerouted. You can see the adjustable panhard bar I made in this pic as well. I ratchet strapped the axle over to center it up and cut/tacked my panhard bar. It moved a bit when the strap was removed so I made the adjustable one. I sleeved a 5/8" bolt to the bar and coupling nut. Worked great. Replaced the springs in the front by removing the U-bolts and replaced the shocks. To my surprise I already had 2" drop springs and was not happy. So I replaced them with 4" springs to get my 2" drop. It sit's nice now and drives and handles great. Attached Images __________________ Matt 1970 C10

09-28-2015, 11:20 AM	#2
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: 70 C10 drop 4/2 Nice work and good looking truck - thanks for sharing! __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!!

09-29-2015, 08:59 PM	#3
picklito Registered User Join Date: Sep 2013 Location: Vacaville CA Posts: 490	Re: 70 C10 drop 4/2 Nice write-up. I like how the panhard bar ended up almost parallel to the axle. I'll be doing the same very soon, but only about 2/4 total. Whose springs did you use? Do you like the spring rates?

10-01-2015, 12:02 PM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,690	Re: 70 C10 drop 4/2 You might want to invest in rear shock relocators. Look how severe your rear "shock angle'' is. They no longer compress,... they just pivot on the shock bolts,... __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

10-05-2015, 12:19 AM	#6
Mmorgan32 Registered User Join Date: Jul 2013 Location: Fresno, ca Posts: 303	Re: 70 C10 drop 4/2 Where did you get the hotchkis 4" springs? __________________ 1972 gmc c15 short bed... Sold 1970 chevy custom camper patina daily driver

10-05-2015, 03:21 PM	#8
Mmorgan32 Registered User Join Date: Jul 2013 Location: Fresno, ca Posts: 303	Re: 70 C10 drop 4/2 Did u have any problems getting it aligned after doing a 4 inch drop? __________________ 1972 gmc c15 short bed... Sold 1970 chevy custom camper patina daily driver

10-05-2015, 03:46 PM	#9
Slow Build Registered User Join Date: Sep 2009 Location: California Delta Posts: 2,163	Re: 70 C10 drop 4/2 Looking at your truck I would never have guessed that it's even lowered. It's hard to believe that it's still sitting that high in front with 4" drop springs. __________________ Name: Rich Current Ride: 1964 C-10 Short Fleetside Daily Driver: 2005 GMC crew cab short fleetside /2001 Chevy Tahoe Past GM Trucks: 1959 GMC short stepside 1968 GMC short stepside-4x4 1973 Chevy short stepside 1989 Chevy short fleetside-reg cab 1993 Chevy short fleetside-Xcab 2002 Chevy short fleetside-Xcab Save the dinosaurs, use synthetic oil.



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