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Old 08-22-2017, 06:35 PM   #2
LostMy65
But Found Her 25yrs Later!
 
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Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,468
Re: Rear Spring size/interchange

Quote:
Originally Posted by Turtleman View Post
Is there a difference between Springs on a C-10 and a C-20?
Beside the Spring rate.. Is a c20 spring able to "Bolt On" a C10 and maintain the same ride height of the c10?
If the coil is a larger size rod on a c20 will the mount plates bolt on a C10 trailing arm?
I'll attempt two questions :
When I bought my 65 back, someone put a piece of diamond plate steel for the bed. They also put air shocks on it. The 1/2 ton springs weren't strong enough to keep the bed from dropping so low that the fenders rubbed on the wide tires.
I was able to swap out the 1/2 ton springs with 3/4 ton springs with no mods. 1/2 ton coil base brackets worked fine with the 3/4 ton coil springs. For me, going from C10 to C20 springs raised my truck up in the back quite a bit.
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I lost my 65 - Found it 25 years later:
http://67-72chevytrucks.com/vboard/s...d.php?t=426650

66 C20 Service Truck:
http://67-72chevytrucks.com/vboard/s...d.php?t=428035
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