Suspension options for 1970 C20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JollyRoger1369 · 06-29-2011, 12:59 PM

Hope you all can help me out here. I have a 1970 Custom Camper C20. It has 8 lug hubs and big disc brake set up. I'm not too keen on the stock height and would love to lower it. I rarely use it for any towing duty. Other than cutting the stock front and rear springs are there any other options? Does anyone make lowered springs and spindles to fit the C20?

If I can't lower it I may go the other route and change it over to 4wd. Have available to me front and rear suspension from a 1988 Chevy so.... but like I said prefer to lower it.

Any ideas or info would be awesome.

Thanks

brad_man_72 · 06-29-2011, 01:56 PM

you can't cut the rear coils, they are tapered on both ends. Blocks, coils, bags, coilovers.......

JollyRoger1369 · 06-29-2011, 02:04 PM

Quote:

Originally Posted by brad_man_72

you can't cut the rear coils, they are tapered on both ends. Blocks, coils, bags, coilovers.......

Forgot about the taper... I'm not positive but I think lowered C10 springs will fit in the rear.. if not I can make'm fit.

It's the front that I think is oing to be an issue. I'm not going to invest in an airbag or coil over system. Thats why I'm hoping to find info on lowered springs and dropped spindles.

JollyRoger1369 · 06-29-2011, 02:33 PM

Okay did a little cross reference research through LMC catalog... Please correct me if I am wrong.

They list stock replacement coild springs
34-2826 coil spring set HD 2wd 1/2T 68-72

and then same p#
34-2826 coil spring set STD 2wd 3/4T 68-72

So this has me thinking the lowered 1/2T springs should work on my C20??

Now if I can find spindle info.

**special-K** · 06-30-2011, 08:27 AM

Can't you just use C/10 lowering coils? I've put 3/4t coils under a 1/2t.

JollyRoger1369 · 06-30-2011, 12:35 PM

Quote:

Originally Posted by special-K

Can't you just use C/10 lowering coils? I've put 3/4t coils under a 1/2t.

Pretty sure I can. But I'm wanting to put dropped spindles too. But research on that isn't looking too good. ball joints are diff part numbers and every where I have called the "operators" use thier catalog description and application, they have zero knowledge.

wild4wheels · 06-30-2011, 01:07 PM

These wont work? I know they are from a 70 but you have disc upgrade, right? I think the numbers are dwindling of places that make them

http://www.airbagit.com/product-p/spi-gm7191c.htm

**leddzepp** · 06-30-2011, 01:10 PM

They do make dropped spindles for the C/20's. I know CPP carries them.

JollyRoger1369 · 06-30-2011, 01:16 PM

Quote:

Originally Posted by wild4wheels

These wont work? I know they are from a 70 but you have disc upgrade, right? I think the numbers are dwindling of places that make them

http://www.airbagit.com/product-p/spi-gm7191c.htm

No upgrades.. all factory 8 lug big disc brakes.

Got an email back from classic performance and they confirmed the springs will work. However they do not know of a dropped spindle for C20's with the 8 lug set up

**leddzepp** · 06-30-2011, 01:30 PM

Quote:

Originally Posted by JollyRoger1369

No upgrades.. all factory 8 lug big disc brakes.

Got an email back from classic performance and they confirmed the springs will work. However they do not know of a dropped spindle for C20's with the 8 lug set up

I know they used to have them???

Here are some conversion ones offered by ece: http://www.earlyclassic.com/catalog.aspx

You will have to look on their site....the exact page doesnt come up in the link.

JollyRoger1369 · 06-30-2011, 01:35 PM

Thanks for the link Leddzepp. They do list them for my application... just have to change my brakes to C10 set up.. so I guess that's not too bad

wild4wheels · 06-30-2011, 01:36 PM

Oh wow, CPP has them? They are showing them..for some reason I thought they had stopped carrying them.. I think the place I was was thinking of purchasing from was Performance online..not airbagit anyways.

wild4wheels · 06-30-2011, 01:38 PM

http://www.performanceonline.com/Drop-Spindles-c-1075

JollyRoger1369 · 06-30-2011, 01:44 PM

Quote:

Originally Posted by wild4wheels

http://www.performanceonline.com/Drop-Spindles-c-1075

And another lead.. thanks!!!

**LockDoc** · 06-30-2011, 03:04 PM

-
Don't know if you saw this thread or not...

http://67-72chevytrucks.com/vboard/s...d.php?t=429995

LockDoc

JollyRoger1369 · 06-30-2011, 11:35 PM

Quote:

Originally Posted by LockDoc

-
Don't know if you saw this thread or not...

http://67-72chevytrucks.com/vboard/s...d.php?t=429995

LockDoc

Cool. Thanks!!!

So now I'm being told that Chevy didn't offer disc brakes until 1971. tried to search for stock replacement front rotors for 1970 and no luck... so now I have to assume a previous owner swapped to 71 newer disc brakes.

But if that is the case spindles and springs are easy swap.

thanks all for the help

06-29-2011, 12:59 PM	#1
JollyRoger1369 Registered User Join Date: Jun 2011 Location: Stagecoach, NV Posts: 28	Suspension options for 1970 C20 Hope you all can help me out here. I have a 1970 Custom Camper C20. It has 8 lug hubs and big disc brake set up. I'm not too keen on the stock height and would love to lower it. I rarely use it for any towing duty. Other than cutting the stock front and rear springs are there any other options? Does anyone make lowered springs and spindles to fit the C20? If I can't lower it I may go the other route and change it over to 4wd. Have available to me front and rear suspension from a 1988 Chevy so.... but like I said prefer to lower it. Any ideas or info would be awesome. Thanks

06-29-2011, 01:56 PM	#2
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Suspension options for 1970 C20 you can't cut the rear coils, they are tapered on both ends. Blocks, coils, bags, coilovers.......

06-29-2011, 02:33 PM	#4
JollyRoger1369 Registered User Join Date: Jun 2011 Location: Stagecoach, NV Posts: 28	Re: Suspension options for 1970 C20 Okay did a little cross reference research through LMC catalog... Please correct me if I am wrong. They list stock replacement coild springs 34-2826 coil spring set HD 2wd 1/2T 68-72 and then same p# 34-2826 coil spring set STD 2wd 3/4T 68-72 So this has me thinking the lowered 1/2T springs should work on my C20?? Now if I can find spindle info.

06-30-2011, 08:27 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,858	Re: Suspension options for 1970 C20 Can't you just use C/10 lowering coils? I've put 3/4t coils under a 1/2t. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

06-30-2011, 01:07 PM	#7
wild4wheels Registered User Join Date: Jan 2001 Location: Queen Creek, Arizona Posts: 1,626	Re: Suspension options for 1970 C20 These wont work? I know they are from a 70 but you have disc upgrade, right? I think the numbers are dwindling of places that make them http://www.airbagit.com/product-p/spi-gm7191c.htm __________________ Dave aka "Wild" Current truck "Ida Mae" 71 K5 Blazer Former Trucks "Loretta" 71 Longbed (AZ) "Tanya" 69 Stepside (AZ) "Ferdinand" 71 Longhorn (SD) "Patches" 67 Panel (IA/ KY) "Rosita" 68 C30 (KY) Instagram @Wildforwheels @k5_klub @c10university Profile pic provided by Jeff Sundance Last edited by wild4wheels; 06-30-2011 at 01:08 PM.

06-30-2011, 01:10 PM	#8
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,009	Re: Suspension options for 1970 C20 They do make dropped spindles for the C/20's. I know CPP carries them. __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

06-30-2011, 01:35 PM	#11
JollyRoger1369 Registered User Join Date: Jun 2011 Location: Stagecoach, NV Posts: 28	Re: Suspension options for 1970 C20 Thanks for the link Leddzepp. They do list them for my application... just have to change my brakes to C10 set up.. so I guess that's not too bad

06-30-2011, 01:36 PM	#12
wild4wheels Registered User Join Date: Jan 2001 Location: Queen Creek, Arizona Posts: 1,626	Re: Suspension options for 1970 C20 Oh wow, CPP has them? They are showing them..for some reason I thought they had stopped carrying them.. I think the place I was was thinking of purchasing from was Performance online..not airbagit anyways. __________________ Dave aka "Wild" Current truck "Ida Mae" 71 K5 Blazer Former Trucks "Loretta" 71 Longbed (AZ) "Tanya" 69 Stepside (AZ) "Ferdinand" 71 Longhorn (SD) "Patches" 67 Panel (IA/ KY) "Rosita" 68 C30 (KY) Instagram @Wildforwheels @k5_klub @c10university Profile pic provided by Jeff Sundance

06-30-2011, 01:38 PM	#13
wild4wheels Registered User Join Date: Jan 2001 Location: Queen Creek, Arizona Posts: 1,626	Re: Suspension options for 1970 C20 http://www.performanceonline.com/Drop-Spindles-c-1075 __________________ Dave aka "Wild" Current truck "Ida Mae" 71 K5 Blazer Former Trucks "Loretta" 71 Longbed (AZ) "Tanya" 69 Stepside (AZ) "Ferdinand" 71 Longhorn (SD) "Patches" 67 Panel (IA/ KY) "Rosita" 68 C30 (KY) Instagram @Wildforwheels @k5_klub @c10university Profile pic provided by Jeff Sundance

06-30-2011, 03:04 PM	#15
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,579	Re: Suspension options for 1970 C20 - Don't know if you saw this thread or not... http://67-72chevytrucks.com/vboard/s...d.php?t=429995 LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.