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#1 |
Registered User
Join Date: Jan 2013
Location: CA
Posts: 37
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Bench Seat Spring Broken on Curve
Mid 70's Chevy truck bench seat.
Drivers side spring is broken at the 90 degree CURVED portion of the spring and don't have any welding tools. In this video (link below), he uses cable clamps (Ferrules) to re-connect broken springs. However, don't see how it would work on the 90 degree curve (unless there are curved ferrules) ? In this post, he used fuel lines to connect the springs at the curves. Is this recommended and will it hold solid ? Any other ideas ? Also, is there a way to firm up the entire length of the elevated spring that runs along the drivers side of the bench (as the passenger side feels firmer in general). Thanks. |
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#2 |
Registered User
Join Date: Jul 2015
Location: Central Coast, CA
Posts: 500
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Re: Bench Seat Spring Broken on Curve
You can bend these seat springs yourself using a simple homemade steel tool. I found it a lot faster to just make the tool than driving all over town looking for a spring of a specific shape. You just need a drill and a tap of the right sizes and the hardware store steel bar stock to make the tool.
You can also buy wire spring steel stock at any Ace Hardware store or you can get an old boxspring (bed) and take it apart to get lots of spring steel of various sizes. Or go to your local upholstery supply to get spring stock. I think I posted about this exact topic a while back and gave a youtube link of some geezer's video of how to make the spring bending tool so you can do a search on this site.. |
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#3 |
Registered User
Join Date: Jan 2013
Location: CA
Posts: 37
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Gromit,
Are you saying to bend the spring near the 90' curve on both ends so that is becomes straight at the broken area to put on the cable clamp? Posted via Mobile Device |
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#4 |
Registered User
Join Date: Jul 2015
Location: Central Coast, CA
Posts: 500
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Re: Bench Seat Spring Broken on Curve
Quote: "Are you saying to bend the spring near the 90' curve on both ends so that is becomes straight at the broken area to put on the cable clamp?"
No cable clamp - I'm saying just bend a whole new spring, end to end - out of new spring wire stock and then insert that into the seat frame to replace the original spring. I'm not saying it is simple if its your first time bending a spring - but once you make the tool you can make the spring in an hour or less; that is allowing for messing up the first one..(or two if you're like me).. It would help if you had one good unbroken original spring to look at to try and duplicate. |
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#5 |
Registered User
Join Date: Jan 2013
Location: CA
Posts: 37
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Ok, that makes sense. I would worry about the spring tension or how to make sure it matches if the spring is not originally from a bench seat. Are there specs for that or most springs happen to be similar?
Also, what is that factory clamp that connects together the different lines of springs and how do you remove/reinstall those? Posted via Mobile Device |
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#6 |
Senior Member
![]() Join Date: Dec 2013
Location: Gods country East,Tn
Posts: 8,545
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Re: Bench Seat Spring Broken on Curve
Ok , let's see if we can clear some of this up .
No, you can't repair springs broken on a 90 with a Ferrell ,any repair would just not last No, you can't weld springs they will become untempered at the repairs area and just bend or break again No , you can't use furniture coil springs to repair automotive springs they are two different animals Yes , stock type springs are available try Auveco Yes , New spring clips are available they have a special spring clip pliers to install them but vise grips will work it's just slower . Post pictures of broken springs there are a number of different styles and sizes Yes you can use generic z springs to fabricate your own repair springs ,you need a small set of bolt cutters to cut them . No you don't need to fabricate some type of"bending tool " you can bend them to fit by hand( wear gloves ) .
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![]() 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop |
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