How to level 67 C20? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Nima · 06-07-2018, 01:35 AM

What is the best (hopefully easier) way to level my 67 C20? Raising the front up or drop the rear down? I am thinking about an inch or inch and half on one end. I like the stock height. Can I just replace the rear coils with C10 or something else? My front steering and suspension is fairly new therefore the lower front end is what factory intended for these truck. Can I raise the some how without affecting the rid quality since my truck ride is not the best the way it is!

Aus69c20 · 06-07-2018, 01:57 AM

The springs in mine are stock with rear trailing arms. I put in 1 1/2” lowering blocks which leaves the truck with a slight rake. 2 inches would get you level.
If you want to soften the ride c10 springs may help.
Here’s a pic of my truck with the blocks.

Nima · 06-07-2018, 08:34 AM

Thanks. Your truck has a nice stance. Do you know if C10 springs are just direct swap? Also, where did get your lowering blocks from? Are they just bolt ons?

rockyrivermark · 06-07-2018, 09:10 AM

Here's a short write I did when leveling my truck with blocks. not need to replace springs etc.
Very easy. See link
http://67-72chevytrucks.com/vboard/s...d.php?t=753458

northerngmc · 06-08-2018, 01:54 AM

I used C10 springs on my 68 C20.

I wanted the truck lower and level.

I used 2" springs on the front and 4" on the rear.

C10 springs were a direct fit.

Before

After

I measured the height to the top of the wheel well and the front dropped 1.5" and the rear 4".

I also went with shorter shocks.

I didn't do anything about the pan hard bar. Seems to be mixed comments on whether it is needed with only a 4" rear drop. I couldn't get an adjustable pan hard bar for the C20 so I left the stock one in place.

Truck rides much better.

Front spring difference.

Rear spring diffence.

Aus69c20 · 06-08-2018, 02:04 AM

Quote:

Originally Posted by Nima

Thanks. Your truck has a nice stance. Do you know if C10 springs are just direct swap? Also, where did get your lowering blocks from? Are they just bolt ons?

Yep, as mentioned by northerngmc c10 springs are direct swap.
I got my blocks from performance online. But they shouldn’t be hard to find.

Aus69c20 · 06-08-2018, 02:21 AM

Northerngmc.
The ece panhard bars that go from the trailing arm to the frame fit c20’s.
I fitted one of the bent bars to mine in anticipation of a bigger drop. It seemed to stabilise the back end, or at least that was my perception.
If your diff is off centre, this is an option.

06-07-2018, 01:35 AM	#1
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,179	How to level 67 C20? What is the best (hopefully easier) way to level my 67 C20? Raising the front up or drop the rear down? I am thinking about an inch or inch and half on one end. I like the stock height. Can I just replace the rear coils with C10 or something else? My front steering and suspension is fairly new therefore the lower front end is what factory intended for these truck. Can I raise the some how without affecting the rid quality since my truck ride is not the best the way it is! __________________ 1953 GMC 3/4 ton: current project 1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake 1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!! 1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive 1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project 2005 Silverado 2500, 4x4 Duramax, original owner

06-07-2018, 01:57 AM	#2
Aus69c20 Registered User Join Date: Jun 2015 Location: Melbourne, Australia Posts: 231	Re: How to level 67 C20? The springs in mine are stock with rear trailing arms. I put in 1 1/2” lowering blocks which leaves the truck with a slight rake. 2 inches would get you level. If you want to soften the ride c10 springs may help. Here’s a pic of my truck with the blocks. Attached Images __________________ John 69 c20, 396, th400, dana60, ps, ac

06-07-2018, 08:34 AM	#3
Nima Blue 67 Join Date: Apr 2004 Location: Western WA Posts: 1,179	Re: How to level 67 C20? Thanks. Your truck has a nice stance. Do you know if C10 springs are just direct swap? Also, where did get your lowering blocks from? Are they just bolt ons? __________________ 1953 GMC 3/4 ton: current project 1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake 1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!! 1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive 1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project 2005 Silverado 2500, 4x4 Duramax, original owner

06-07-2018, 09:10 AM	#4
rockyrivermark Registered User Join Date: Apr 2011 Location: Fairview Park, Ohio Posts: 1,031	Re: How to level 67 C20? Here's a short write I did when leveling my truck with blocks. not need to replace springs etc. Very easy. See link http://67-72chevytrucks.com/vboard/s...d.php?t=753458 __________________ My build page http://67-72chevytrucks.com/vboard/s...d.php?t=764662 My cabinet building site http://www.cbcabinets.com

06-08-2018, 01:54 AM	#5
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: How to level 67 C20? I used C10 springs on my 68 C20. I wanted the truck lower and level. I used 2" springs on the front and 4" on the rear. C10 springs were a direct fit. Before After I measured the height to the top of the wheel well and the front dropped 1.5" and the rear 4". I also went with shorter shocks. I didn't do anything about the pan hard bar. Seems to be mixed comments on whether it is needed with only a 4" rear drop. I couldn't get an adjustable pan hard bar for the C20 so I left the stock one in place. Truck rides much better. Front spring difference. Rear spring diffence. __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

06-08-2018, 02:21 AM	#7
Aus69c20 Registered User Join Date: Jun 2015 Location: Melbourne, Australia Posts: 231	Re: How to level 67 C20? Northerngmc. The ece panhard bars that go from the trailing arm to the frame fit c20’s. I fitted one of the bent bars to mine in anticipation of a bigger drop. It seemed to stabilise the back end, or at least that was my perception. If your diff is off centre, this is an option. Attached Images __________________ John 69 c20, 396, th400, dana60, ps, ac

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.