C20 Alignment Issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

todd99 · 02-14-2011, 06:44 PM

I emailed Paul of GMC Paul's and asked him if he carries anything beyond a 2" drop spring for the C20. He said that upon request they will make a 3" drop spring but anything beyond 2" will result in serious alignment problems.

Can anyone confirm or deny this?

Also would drop spindles have the same problem?

todd99 · 02-14-2011, 06:45 PM

...And if anyone knows of lowering leaf springs for a 3/4 ton C20 please let me know.

**lolife99** · 02-14-2011, 07:20 PM

Quote:

Originally Posted by todd99

...And if anyone knows of lowering leaf springs for a 3/4 ton C20 please let me know.

This would be my 1st choice:
http://www.performanceonline.com/Leaf-Springs-c-782/
Multi Leaf:
Stock, 3", 4", or 5" drop leaf spring.

Mono leaf :
4" or 6" drop.

Available for C10 or C20.

**lolife99** · 02-14-2011, 07:18 PM

Quote:

Originally Posted by todd99

I emailed Paul of GMC Paul's and asked him if he carries anything beyond a 2" drop spring for the C20. He said that upon request they will make a 3" drop spring but anything beyond 2" will result in serious alignment problems.

Can anyone confirm or deny this?

Also would drop spindles have the same problem?

Drop spindles would still require an alignment, but won't cause any issues.
You will have to convert the front to disc brakes since there are no drum brake drop spindles manufactured.
Also there are several members on here using a 3" drop spring with no alignment issues.
But every truck is different.
And every truck has had a different life. (bent or tweeked frame?)
So no definite answer to your particular truck.

todd99 · 02-14-2011, 07:36 PM

Thanks. My frame is straight and it came with front discs. The original Discs should still fit, yes?

**N2TRUX** · 02-14-2011, 07:41 PM

Quote:

Originally Posted by todd99

Thanks. My frame is straight and it came with front discs. The original Discs should still fit, yes?

Yes if the drop spindles are made for your application then they will fit. Any time you can lower the front with spindles, that should be your first choice.

I would be concerned with ride on any 3" spring, but especially ones designed for a C20. Those seems like they would be very short and stiff.

02-14-2011, 06:44 PM	#1
todd99 Registered User Join Date: Feb 2011 Location: prescott, az Posts: 225	C20 Alignment Issues I emailed Paul of GMC Paul's and asked him if he carries anything beyond a 2" drop spring for the C20. He said that upon request they will make a 3" drop spring but anything beyond 2" will result in serious alignment problems. Can anyone confirm or deny this? Also would drop spindles have the same problem? __________________ 1971 C20 Longhorn Custom Camper

02-14-2011, 06:45 PM	#2
todd99 Registered User Join Date: Feb 2011 Location: prescott, az Posts: 225	Re: C20 Alignment Issues ...And if anyone knows of lowering leaf springs for a 3/4 ton C20 please let me know. __________________ 1971 C20 Longhorn Custom Camper

02-14-2011, 07:36 PM	#5
todd99 Registered User Join Date: Feb 2011 Location: prescott, az Posts: 225	Re: C20 Alignment Issues Thanks. My frame is straight and it came with front discs. The original Discs should still fit, yes? __________________ 1971 C20 Longhorn Custom Camper



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