What sized car/truck as they quite likely fit differently.

Tony

I did a quick internet search and found this. Does it help?

I also found this.

http://67-72chevytrucks.com/vboard/attachment.php?s=3bc49ac70ec9058eaf516291a5a2e3f3&attachmentid=769092&stc=1&d=1309713003

@anthony-williamson 

My overload spring attaches by the axle pivot and has, I think, a rubber rebound at both ends that attaches

to the frame member.

Keith

Here are some photos of the overloads springs on my ‘46.  Send me a PM if more or different photo angles are needed.

37Blue

Wow, I can see why the pictures I found were no help. A completely different design direction on the later set-up. Thanks for posting that Lee.

I have not seen any of the systems here in Aus but merely posted so that others replying would have an idea what sized truck to use as a reference

Tony

Overload springs were not a Chevrolet accessory option, according to the period references I have searched and discussions with others that commented on my inquiries about these some years ago.  As I recall Chevgene, the guru of all parts Chevy, was one of the commenters back then.  These springs were commonly used in the midwest by farmers.  They were sold by such places as the old “Western Auto”.  I was cautioned when restoring my ‘46 that I should remove them so as to avoid points loss in judging.  I decided to restore and keep them anyway.  I figured if I decided to get judged, these could be removed without too much effort.

(Unfortunately, since the migration to this new software version of the Chat, Chevgene has not been seen.  His knowledge and eagerness to share same is missed.)

@lee 

The springs you forwarded are exactly the same as mine.  If you could send some additional pictures of the rebound mountings on the frame and how the springs are attached to the axle, I will be able to match up the parts I have to their location and bolt them up.

My sincere thanks for your interest and response.

Keitu

@keith-johnston 

Here are some additional photos.  

The overload springs are mounted to the axel using a cast steel bracket and two short U-bolts.

Brackets hold the rubber bumpers attached to the frame opposite the ends of the overload springs.  These are in 3 pieces and held in place with two bolts.  The rubber bumper is press fit into the recess in the larger steel bracket piece.

37Blue,

I tried to fit the overload spring to the axle/spring top, but it will seat.  Does that special part that you mentioned go between the spring bottom and the axle spring/top?  I'm sure I did not have such a part when I removed them.  My overloads bend up and have a bolt on each side of the spring mounting point. I also have a part with some rounded sides that look like attaching points for the short bolt you mentioned.  I cannot determine its exact point of fitting.

More comments welcome.

Keith

Keith

I’m not understanding something here.  Can you post a photo of the pieces you have and how they are fitting on the axel?  My suspicion is we might be not communicating clearly? 

@lee 37Blue,

I think I have the solution.  The seat and cap for your 1946 has casting number 373345/46 as does mine. Per the parts book that covers 1936 to 1946.  I checked the fit on my 54? axle and they are a tight fit.  Casting number is 373845.

  So my overload springs evidentially came from some other year.  If I want to use them I will need to do some machine work, so I likely will just put it off.

My thanks again for your assistance.

Keith