The 67-72 drivers front spring hanger strap and shackle stop thread
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There has been some discussion on another thread here, I’d like to document and learn more about when the strap and stop became Oe equipment on the frame vs. a recall addition. I believe they became standard equipment in 72. The reason I say this is because the recall front hanger strap is different than the straps I’ve seen on a few 72’s. Also a part number was posted for the strap and stops. I did some research and it lists as 70-71. I’ll post some pictures up from that thread, credit to too much stuff for his picture contributions which I will re post here.
First I will post pictures of my trucks, a 69 K10 short bed, and a 72 K20. Note the spot welded strap on the 72 which does not have the lower mounting areas that the other trucks pictured have, and no strap on the K10. I will add the rest of the pictures in a little bit. |
Re: The 67-72 drivers front spring hanger strap and shackle stop thread
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Now here are some pictures that Too Much Stuff shared of his trucks. Note that they all have the same style of “cage” type front strap that seems to be welded to the hanger via a bead rather than the spot welds on my ‘72. Also note the part number on the box, as said above I searched that number and found several NOS examples all listed for 70-71.
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Re: The 67-72 drivers front spring hanger strap and shackle stop thread
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And finally here’s a few too much stuff posted of the strap kit which I presume is for the recall. I found a few for sale online. I think I might add one to my K10.
Note the difference in shape and design of the front strap compared to the one on my truck. To me these have to be related to the recall because I doubt GM would sell this weld on part of a frame. As I said, I looked up the pry number and it lists for 70-71. This also confirms in my mind that only 72’s came with the spot welded strap from factory (why would GM sell a bracket kit for a frame that should have already had them from the factory?) I suppose that it is possible that maybe there could have been plant variances but I’m skeptical. All this long winded stuff aside, post up some pictures of your spring straps and let’s see what’s out there, I would love to see some pre ‘72 trucks that maybe have the spot welded strap. |
Re: The 67-72 drivers front spring hanger strap and shackle stop thread
What be the purpose of that strap/ stop ?
What happened that required it? something to do with the steering forces ? Trucks hitting Huge attack boulders on the drive side spring perch? |
Re: The 67-72 drivers front spring hanger strap and shackle stop thread
They were there in case the spring eye bolts were to break. They helped keep the spring in place to maintain steering ability until the truck could get stopped(I’m sure sometimes much longer:lol:) also I’ve seen some say that the rear bracket helps to keep the spring from coming thru the floor in the event of a bad crash.
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Re: The 67-72 drivers front spring hanger strap and shackle stop thread
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Re: The 67-72 drivers front spring hanger strap and shackle stop thread
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Here is a bad pic of a 72 K20 I got last year. It has the strap on the LH front hanger. I'll get better pics later. The 2nd pic is one on my Longhorn from years back. |
Re: The 67-72 drivers front spring hanger strap and shackle stop thread
Years ago I had this happen to me on a hunting trip in Northern Maine. It was a 72 so it had the strap and stop on it. On a really rough dirt road I heard a bang, got out and looked around but saw nothing. It wasn't until I got home (400 mi) that I found the mane leaf had broken at the eye bolt. So this thing really does work.
Gary |
Re: The 67-72 drivers front spring hanger strap and shackle stop thread
Awesome input guys! I knew the stock springs just had the single wrap but it never occurred to me that was the point of failure. Makes complete sense. I love documenting true history on these trucks.
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Re: The 67-72 drivers front spring hanger strap and shackle stop thread
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I decided to check my other K20 to see if it had these. I always thought it was a 71. It has 68-71 doors on it and the PO said it was a 71 so I just went with it. Yesterday I was looking to see if it had the safety strap and stop and it did. I was kind of excited because being it was a 71, it would be one of few that came with it. But no, the VIN clearly shows it is a 72. :lol:
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