Reference: CMP seat back coil spring dimensions

[Jordan Baker]

I stopped by with my samples today. After careful measuring of both springs the shops computer spotted out a price of $3.25 Cnd per spring. This price was also based on an order qty of 10-15 sets. Each set would therefore be $78 plus tax plus a little extra for the rings.

I feel that it is rather expensive. Maybe I'm out of touch with what it costs for springs to be made.

[Lang]

The key ring sounds like a sensible idea. Why bother drilling holes in the washers, the original did not have 90deg positioning. Just get a suitable size washer and hook through the centre hole like the original rings.

Lang

[Hanno Spoelstra]

Originally Posted by Jordan Baker

I stopped by with my samples today. After careful measuring of both springs the shops computer spotted out a price of $3.25 Cnd per spring. This price was also based on an order qty of 10-15 sets. Each set would therefore be $78 plus tax plus a little extra for the rings.

I feel that it is rather expensive. Maybe I'm out of touch with what it costs for springs to be made.

Jordan,

Thanks for checking the prices. I found an off-the-shelf spring with comparable dimensions (but a little too long which would mean the back would sag), and the price for it was in the same ball park. It all adds up a little too fast...

Maybe the only cheaper option is to make them oneself from spring stock as Bob did?

Hanno

[Jordan Baker]

There is chance that one of the guys near me is buying some spring making machines. There used to be a local guy here who made springs. His prices were a lot cheaper but his health declined badly and he is no longer in business. If the purchase of the machines can be done I'll be a to get the springs done for very very cheap. So as it stands now I'm holdoff in the hope that the machines will be sold.

[Hanno Spoelstra]

Here's another option I found.

The owner of a Ford FGT opted to restore the six seats in his FAT as per the pictures:

IMG-0874.jpg IMG-0873_resized.jpg

[Hanno Spoelstra]

Meanwhile, a Dutch guy restoring a Morris-Commercial C8 Quad sourced an off-the-shelf spring with almost identical dimensions as the original.

Here they can be seen fitted to a Chevrolet seat by Pieter Bergman.

Alex van de Wetering has sourced a rings as well, so his truck will be fitted with new seat backs shortly.

IMG-20180224-WA0000.jpg

[Jordan Baker]

I’ve still got some ring sets available. Can see my post in the for sale section.

[Phil Waterman]

Hi

But the big question is how do they work, are they comfortable? I've been lucky that two of my trucks came with good seats. But the third the cushions and the back springs were gone. I've tried various readily available springs and have not found any that are comfortable to sit against for any length of time. Generally there is not enough give across the top.

Now how to measure the give of the springs to try and find good

Cheers Phil