Can you fit a C4 glass spring in a C3?
03-12-2003, 01:43 AM
#1
Burning Brakes
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Can you fit a C4 glass spring in a C3?
The rear spring from an 84 looks very close to fitting. I think the C3 & C4 are 2 1/4 in wide but slightly diff in length.
Anyone done it.
:cheers:
Anyone done it.
:cheers:
03-12-2003, 01:55 AM
#3
Burning Brakes
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Re: Can you fit a C4 glass spring in a C3? (Metal_Wulf)
Maybe the same reason they changed to a glass spring in the late C3's. Weight saving? Better handling?
I have a '77.
I have a '77.
03-12-2003, 06:33 PM
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Burning Brakes
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Re: Can you fit a C4 glass spring in a C3? (Metal_Wulf)
Thanks MW - at least I got 1 reply!
Vette Brakes is 10 000 miles away and the part I'm looking at is 20 miles away! Exchange rate is ridiculous as well! Sometimes I don't know why I bother asking!
I can't believe no one has ever contemplated it! The C4 spring looks like it would fit, is the same witdh at the mounting point, but a little longer I think.
It's not as if we can just go around the corner for all these parts you know!
Vette Brakes is 10 000 miles away and the part I'm looking at is 20 miles away! Exchange rate is ridiculous as well! Sometimes I don't know why I bother asking!
I can't believe no one has ever contemplated it! The C4 spring looks like it would fit, is the same witdh at the mounting point, but a little longer I think.
It's not as if we can just go around the corner for all these parts you know!
03-12-2003, 06:36 PM
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Melting Slicks
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St. Jude Donor '08
Re: Can you fit a C4 glass spring in a C3? (Chris O')
The way you mount the springs is differnt. C3 is 3 bots, and the C4 is 4. + the c4 spring is a bit longer.
03-12-2003, 06:39 PM
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Re: Can you fit a C4 glass spring in a C3? (Chris O')
Obtaining parts must be :banghead: over there. If the spring is a good price I would buy it. You can sometimes shorten if necessary. I picked up a spring at a sale for real cheap and I'm going to retro fit it this spring. If the mount is correct it should work. You'll also need gas shocks.
:cool:
:cool:
03-13-2003, 07:55 AM
#9
Melting Slicks
Re: Can you fit a C4 glass spring in a C3? (88'Cubka)
The way you mount the springs is differnt. C3 is 3 bots, and the C4 is 4. ......
03-13-2003, 08:07 AM
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Re: Can you fit a C4 glass spring in a C3? (Chris O')
Chris
A little longer should work from a length standpoint if the spring rate was correct so it would be nice to know exactly or at least approx. diff. in length & the spring rate.
A little longer should work from a length standpoint if the spring rate was correct so it would be nice to know exactly or at least approx. diff. in length & the spring rate.
03-13-2003, 10:14 AM
#11
Melting Slicks
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St. Jude Donor '08
Re: Can you fit a C4 glass spring in a C3? (mapman)
The way you mount the springs is differnt. C3 is 3 bots, and the C4 is 4. ......
Your C3 spring should be held on with 4 bolts. 1980-82 (Dana Aluminum) used 3 bolts, so the metal 1980 spring and the stock fiberglass springs in 1981-82 were held with 3 bolts.
Your C3 spring should be held on with 4 bolts. 1980-82 (Dana Aluminum) used 3 bolts, so the metal 1980 spring and the stock fiberglass springs in 1981-82 were held with 3 bolts.
My 80's is held on with 3 bolts, and my brothers 88 is held on with 4.
03-13-2003, 07:06 PM
#12
Burning Brakes
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Re: Can you fit a C4 glass spring in a C3? (Ganey)
Ganey
I think the diff in length is only about 20mm but the C4 spring was still mounted in a complete cutaway rear end so it had no weight on it. It used 4 mounting bolts as does my '77 but the C4 uses a lot of spacers in the mounting bracket.
As soon as my mate finishes his rear bushings we'll drop it down and do a swap and measure it then. I reckon it'll go close.
:cheers:
I think the diff in length is only about 20mm but the C4 spring was still mounted in a complete cutaway rear end so it had no weight on it. It used 4 mounting bolts as does my '77 but the C4 uses a lot of spacers in the mounting bracket.
As soon as my mate finishes his rear bushings we'll drop it down and do a swap and measure it then. I reckon it'll go close.
:cheers: