72 K20 Leaf Spring Shocks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gable74 · 08-14-2016, 10:54 AM

Sorry guys, I searched but I am not finding the right combination. I am looking to replace all 4 shocks on my k20 but not finding a good part number.

Its a 1972 k20 with leaf springs. Anyone have some suggestions based on experience or can just throw out some part numbers? Just looking to replace the worn out ones that are on there.

Thanks,
Jimmie

**Stocker** · 08-14-2016, 12:53 PM

If you're interested in KYB Gas-A-Just, rear shock #KG5417 is what I'm running. My K20 has 2.5" Softrides up front and the longer rear shocks are the right length to use up front also.

Edit: Summit Racing shows KYB Gas-A-Just front shock #KG5408 for your K20.

Bigdav160 · 08-14-2016, 01:36 PM

The blue truck in your avatar looks to have a lift on it.

gable74 · 08-14-2016, 03:13 PM

Crap, your right. I have a 3" lift in the rear and none in the front.

**Stocker** · 08-14-2016, 03:58 PM

I bet those front springs are aftermarket, with a small (less than 4") lift to them. More truck pics might help confirm it. My K20's OEM front springs were 2-leaf. The 2.5" Softrides are 5-leaf.

gable74 · 08-14-2016, 04:02 PM

Quote:

Originally Posted by Stocker

I bet those front springs are aftermarket, with a small (less than 4") lift to them. More truck pics might help confirm it.

Okay, what pics would you like to see?

**jerry moss** · 08-14-2016, 06:19 PM

your truck is lifted for sure. contact any of the major lift companies -tuff country, super lift, skyjacker etc., and ask for part numbers for a 3 inch lift. also find out who manufactures their shocks and get your local parts supplier to cross the numbers for you or just purchase them from one of the lift companies. your front springs might still have the original part number stenciled on the top leaf in white paint which would go a long way in trying to identify who made them.

**Stocker** · 08-14-2016, 06:31 PM

Quote:

Originally Posted by gable74

Okay, what pics would you like to see?

I was thinking something from the side would help, on level ground, to compare the front height to the rear.

But since I posted that, Jerry has confirmed what I suspected, and offered suggestions to help determine what you have and what shocks would work.

08-14-2016, 10:54 AM	#1
gable74 Registered User Join Date: Dec 2015 Location: Pasadena, MD Posts: 344	72 K20 Leaf Spring Shocks Sorry guys, I searched but I am not finding the right combination. I am looking to replace all 4 shocks on my k20 but not finding a good part number. Its a 1972 k20 with leaf springs. Anyone have some suggestions based on experience or can just throw out some part numbers? Just looking to replace the worn out ones that are on there. Thanks, Jimmie __________________ 1972 K-20 Custom Camper 1971 K2500 Custom Camper (Sold) 2014 GMC 2500HD DMAX

08-14-2016, 12:53 PM	#2
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,692	Re: 72 K20 Leaf Spring Shocks If you're interested in KYB Gas-A-Just, rear shock #KG5417 is what I'm running. My K20 has 2.5" Softrides up front and the longer rear shocks are the right length to use up front also. Edit: Summit Racing shows KYB Gas-A-Just front shock #KG5408 for your K20. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay Last edited by Stocker; 08-14-2016 at 12:59 PM.

08-14-2016, 01:36 PM	#3
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: 72 K20 Leaf Spring Shocks The blue truck in your avatar looks to have a lift on it. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

08-14-2016, 03:13 PM	#4
gable74 Registered User Join Date: Dec 2015 Location: Pasadena, MD Posts: 344	Re: 72 K20 Leaf Spring Shocks Crap, your right. I have a 3" lift in the rear and none in the front. Attached Images __________________ 1972 K-20 Custom Camper 1971 K2500 Custom Camper (Sold) 2014 GMC 2500HD DMAX Last edited by gable74; 08-14-2016 at 03:31 PM.

08-14-2016, 03:58 PM	#5
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,692	Re: 72 K20 Leaf Spring Shocks I bet those front springs are aftermarket, with a small (less than 4") lift to them. More truck pics might help confirm it. My K20's OEM front springs were 2-leaf. The 2.5" Softrides are 5-leaf. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

08-14-2016, 06:19 PM	#7
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,915	Re: 72 K20 Leaf Spring Shocks your truck is lifted for sure. contact any of the major lift companies -tuff country, super lift, skyjacker etc., and ask for part numbers for a 3 inch lift. also find out who manufactures their shocks and get your local parts supplier to cross the numbers for you or just purchase them from one of the lift companies. your front springs might still have the original part number stenciled on the top leaf in white paint which would go a long way in trying to identify who made them. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA



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