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Username Post: Original Shocks On 1970 CST - Coil Overs?        (Topic#358834)
impalex 
Silver Supporting Member
Posts: 170
impalex
Loc: Long Beach, CA, USA
Reg: 03-13-05
11-16-19 01:29 PM - Post#2780303    

Hi All,

I spent a couple of days this week under my C10 replacing the shocks at all four corners. The truck rides SO MUCH BETTER now. But I was shocked to find (pardon my painful pun) that the rear shocks I removed were the original Delco brand shocks (photos attached)
https://www.dropbox.com/s/j7tvpxhmulk2q3c/201 91114...

https://www.dropbox.com/s/xvjmrxn8yw6juwc/201 91114...

I had never seen the spiral style design of these original units. I'm 41 years old but I've been under a few different old Chevy rides from the 70's and earlier.

The reason for this post is to see if any of you had ever seen the strange "Coil Over" setup that was installed on my truck. My truck does specify it had the "Heavy Duty Rear Spring Package" but I assumed that just meant leaf springs (which it does have). Here's a photo of the shocks as they were installed on my rear axle.
https://www.dropbox.com/s/2dwql35y3csxngx/201 91111...

And then here's the pair after I removed them, one with the spring still secured to the shock body and one that has been removed from the shock body.
https://www.dropbox.com/s/c5mjzmwnwj9xugd/201 91114...

Are any of you familiar with this kind of setup? Is this common from either the dealership install or from the factory? Or is this one guy's McGuyver attempt at adding "Extra Load Capacity" to his heavy duty truck?

Thanks for all your help and insight.


65 Impala SS w/327 and TH350 trans. "Ignorance is the parent of fear" Herman Melville-Moby Dick When it comes to cars, the above is very true!


Edited by impalex on 11-16-19 04:47 PM. Reason for edit: Corrected Links To Photos

 


Mel Foye 
*VIP* Founding Member
Posts: 4926
Mel Foye
Reg: 09-29-00
11-16-19 02:37 PM - Post#2780311    
    In response to impalex

Spiral shock is likely original. The spring on a shock was a way to add stiffness. Not the best way to go. Was aftermarket.
Glad to read of better with new shocks. What brand did you get?



 
impalex 
Silver Supporting Member
Posts: 170
impalex
Loc: Long Beach, CA, USA
Reg: 03-13-05
11-16-19 02:43 PM - Post#2780312    
    In response to Mel Foye

Hi Mel,
Thank you for the reply. I see that my photos aren't showing up. Not sure why that's the case. I've sent a request to the HELP team. I'd love to have the photos included. In any case, I put in your standard KYBs. The black dual tube version, not the white or silver monotube version. The KYB site said the black ones are the OEM replacement and plus they were $10.00 less per shock on SummitRacing.com I'm very happy with them.

Does anyone rebuild the original shocks? I ask because I'm wondering if these are just to be tossed into the trash or if someone would be interested in buying them.



65 Impala SS w/327 and TH350 trans. "Ignorance is the parent of fear" Herman Melville-Moby Dick When it comes to cars, the above is very true!


 
Keith_Knox 
Moderator and "17th Year" Gold Supporting Member
Posts: 6237
Keith_Knox
Age: 78
Loc: Napa, Ca USA
Reg: 04-02-00
11-16-19 03:14 PM - Post#2780316    
    In response to impalex

http://www.chevytalk.org/fusionbb/showforum.php?fi... Posting photos

29-41, 42-48, 49-54 Moderator
1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966.
1946 Chevy 1/2 ton pickup, stock. Purchased 11/18/17.
2019 Ford Ranger Lariat Super Crew


 
impalex 
Silver Supporting Member
Posts: 170
impalex
Loc: Long Beach, CA, USA
Reg: 03-13-05
11-16-19 04:50 PM - Post#2780320    
    In response to Keith_Knox

Hi Keith,

Thank you for the link to the photo sharing tool tutorial. I subscribed today so I assumed I was able to just use go the easy route and click the buttons above. Since that didn't work, I'm guessing there needs to be some time allowed for the CT Admin Team to re-classify me as a supporting member and then my access to the tools will be live.

I did edit the post so that now the links work.

65 Impala SS w/327 and TH350 trans. "Ignorance is the parent of fear" Herman Melville-Moby Dick When it comes to cars, the above is very true!


 
Keith_Knox 
Moderator and "17th Year" Gold Supporting Member
Posts: 6237
Keith_Knox
Age: 78
Loc: Napa, Ca USA
Reg: 04-02-00
11-17-19 09:41 PM - Post#2780410    
    In response to impalex

Yep. Says you are a supporting member now, so you should be able to post photos.

29-41, 42-48, 49-54 Moderator
1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966.
1946 Chevy 1/2 ton pickup, stock. Purchased 11/18/17.
2019 Ford Ranger Lariat Super Crew


 
4dr 57 
Valued Contributor
Posts: 4636

Loc: Texas Hill Country
Reg: 11-10-04
11-19-19 06:13 AM - Post#2780492    
    In response to impalex


As already stated, the bolt on springs where 'helper springs' popular in the day as a way to so any number of duties such as, add some extra life to worn shocks for awhile, one could over-raise the rear end if the top of the spring was pulled farther down the shock absorber case to induce 'rake' to the body (of cars.)

In more modern times Monroe makes an overload shock that has a built in (non adjustable) spring in place that does not add height but does increase stiffness. I have a pair of them on the back of my 57 car. No interference problem signals well engineered pieces.

Your add on springs where commonly available from Warshawsky through JC Whitney. those add-on springs are of an Era where 'twist in' hunks of spiral shaped aluminum where installed into the front springs to increase front end height which created more drag on the car because of distorted front end alignment than any advantage in traction - weight transfer - could ever overcome.
Back in the day the "way to do it" in front, for the 1/4 mile was 6'cylinder springs, (possibly with A/C pads under them,) aluminum or steel 2" ball joint spacers, 90/10 shocks, and shock absorber shaft extensions added to the top of the shock mounting rod.In the rear, 8' traction bars welded to the axles and a lateral bar towards the front, between the frame rails got the job done. Real Scientific stuff




 
impalex 
Silver Supporting Member
Posts: 170
impalex
Loc: Long Beach, CA, USA
Reg: 03-13-05
11-27-19 10:44 AM - Post#2781073    
    In response to 4dr 57

Damn, thank you for all that history. Sounds like these belong on display in the Engineering School of What NOT To Do, which basically I could see without ever knowing the history. I'm very happy to see your thoughtful reply though. I love learning about the by-gone trends and techniques.

Three weeks in, the KYBs are sure doing the trick. The truck is a little bit "Floaty" in general but that makes it very comfortable and, like most people (I'm sure), this truck is only ever going to see light duty while I own it so the suspension performs pefectly for my needs.

65 Impala SS w/327 and TH350 trans. "Ignorance is the parent of fear" Herman Melville-Moby Dick When it comes to cars, the above is very true!


 


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