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Rear strut rods and shocks. (1/35)
 12/28/22 8:11pm
Elvis57
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Going to be replacing rear strut rods , one was bent so replacing both. Doing the rear shocks at the same time.  Looks pretty straight forward.  I'm using rubber bushings,  should I use any type lubricant to slide the in place. Thanks  , Dan.  

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Re: Rear strut rods and shocks. (2/35)
 12/28/22 8:21pm
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Re: Rear strut rods and shocks. (3/35)
 12/28/22 8:39pm
Elvis57
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Thanks appreciate it. Have a a Happy New Year

Re: Rear strut rods and shocks. (4/35)
 12/28/22 10:40pm
F4Gary
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Rubber was a good choice.



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Re: Rear strut rods and shocks. (5/35)
 12/29/22 12:00am
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A little dab of silicone grease may help slide things together easier.



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Re: Rear strut rods and shocks. (6/35)
 12/29/22 9:49pm
Elvis57
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Thanks for advice. Do the nuts on strut rod and shocks get torqued with car on ground? Thanks 

Re: Rear strut rods and shocks. (7/35)
 12/30/22 1:41pm
F4Gary
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I wouldn't think it mattered.



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Re: Rear strut rods and shocks. (8/35)
 12/30/22 5:19pm
Elvis57
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Thanks.  Having a issue removing one of the strut rods. First came out with hardware no problem. Second one is bent , i have all the nuts off every bolt, even tried using a jack to relieve some of the pressure. Using a long punch hitting shock mount bolt in center as not to strip threads. It wont budge. Spray it with some blaster penetrating oil, going let sit overnight. will try again in morning. 

Re: Rear strut rods and shocks. (9/35)
 12/30/22 5:58pm
F4Gary
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Can you not get the other end off to relieve any tension on the strut rod?



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Re: Rear strut rods and shocks. (10/35)
 12/30/22 8:50pm
Elvis57
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I tried but I do not have the room to really get a good hit on it. It's really in there. That's why I hoped to get the one by the shock (which has been removed).  Off to relieve tension on the other end. 

Re: Rear strut rods and shocks. (11/35)
 12/30/22 9:58pm
F4Gary
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Can you turn the adjusting bolt? Work it back and forth?



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Re: Rear strut rods and shocks. (12/35)
 12/31/22 6:40am
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Have you considered removing the center bracket that holds the ends and adjusters?



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Re: Rear strut rods and shocks. (13/35)
 1/1/23 4:19am
Elvis57
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Was able to get the camber adjustment nut and bolt out. The shock mount one is the one that won't come out. Tried PB blaster , torch,  won't budge.  Going to try CRC freezing spray and air chisel. Appreciate the advice. 

Re: Rear strut rods and shocks. (14/35)
 1/1/23 6:59am
manchestersharkLifetime Member
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Greetings, The shock/strut rod mounting point is knurled on the inside. It has a flat spot that fits Only in one spot in bearing hub. Yes, they are a bear to remove. BUT, there is a tool that is available to thread on the stub to allow a persuader to assist in removal. Look in most of the vendor catalogs and find the spindle knockout tool. I have one, and know it works. 



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Re: Rear strut rods and shocks. (15/35)
 1/1/23 10:36am
F4Gary
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You might try threading the castlated nut on backwards flush with the end to protect the threads and then hit it with a hammer.

I've also heard of folks using a threaded iron pipe end cap to protect the threads from the hammer blows.



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Re: Rear strut rods and shocks. (16/35)
 1/1/23 8:13pm
Elvis57
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Thanks for the advice.  Tried castle nut on backwards,  no dice. Was at home depot looking for cap to put over, could not find one. Will try and look for the item you mentioned to out on threads to put over it. Next move, sawzall and a new strut rod shaft. Happy new year 

Re: Rear strut rods and shocks. (17/35)
 1/10/23 8:01pm
Elvis57
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Just finished shocks and struts, too car for a drive to check it out. Going to need a rear wheel alignment. Does anyone have an idea of the cost of this. Thanks.

Re: Rear strut rods and shocks. (18/35)
 1/10/23 8:17pm
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Word of advice on the rear alignment....you MUST find a shop that is familiar with the rear suspension on these cars to do the alignment. The alignment is a real pita to do to begin with, and not many shops are equipped to do them, nor do they have the proper shims or personnel. Even the dealerships are crap when it comes to doing these. It is time consuming, and somewhat frustrating to set the rear toe, so most places wind up just setting the camber and letting it go. Check around, and try to find a place, or person, that can do it properly....your tires, and wallet will thank you in the end. Just guessing, I'd say it will run at least $200 or more, unless you provide a good assortment of shims yourself. If you do, make sure to (secretly) count them before and after, to see that they used some, and take a look at the front of the trailing arms to verify new shims.



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Re: Rear strut rods and shocks. (19/35)
 1/10/23 8:47pm
Elvis57
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Thanks , .much appreciate the advice. Theres a few places around here I can call to make sure they do this type of alignment.  One of the strut rods I replaced besides the bushings being shot was bent. That was hell of a time getting that one in. I didn't put in adjustable ones, tried keeping as original as I can. 

Re: Rear strut rods and shocks. (20/35)
 1/11/23 5:38pm
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Are your trailing arm bushings in good condition?    Replacing them is a big job though.  Also as far as torquing things on rear suspension:  The transverse leaf spring 'mounting bracket' has four bolts going into the differential rear cover.  Those need to be torqued with the car on the ground, or you risk breaking a bolt.   

I am currently doing an R&R on my 4-spd 79's entire rear suspension/drive train.  100,000 miles, and needed lots of TLC.😏



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Re: Rear strut rods and shocks. (21/35)
 1/25/23 10:24am
Elvis57
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I didn't check on trailer arm bushings when doing strut rods. My mistake.  Just took a look and , I'm assuming there bad, as the shims are completely rusted and looks like never had been removed.  Going to order bushing kit , along with the tool to install. Also rear outer spring bushing kit. Looks like only thing I won't replace is the spring itself. Thanks for advice.  Sorry. I'm long winded

Re: Rear strut rods and shocks. (22/35)
 1/25/23 12:11pm
Sasza79
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I purchased polyurethane bushings by "Energy Suspensions" which do not require a special tool for installation.  Not installed yet, but maybe others can comment on them.  Also, stainless steel shims are available to replace originals.  



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Re: Rear strut rods and shocks. (23/35)
 1/25/23 12:25pm
Elvis57
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Thanks, must appreciate it. Can you all the advice I can get.

Re: Rear strut rods and shocks. (24/35)
 1/25/23 12:46pm
Sasza79
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So here is the Manufacturer's website to get more information:  Teamenergysuspension.com.   There are many sources that carry their bsuhings.

(There is also a similar-sounding site, Energysuspensionparts.com, a dealer which sells these, and other suspension parts)



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Re: Rear strut rods and shocks. (25/35)
 1/25/23 1:28pm
Elvis57
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Thanks Sasza79. I will check l it out. Its winter here, so trying to get the parts I need to install in March or maybe February.  

Re: Rear strut rods and shocks. (26/35)
 1/25/23 4:40pm
F4Gary
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Question on the trailing arms bushings.  Once the trailing arms are out, are the bushings hard to remove and replace like the A arm bushings, or do they just come out and new ones put in?



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Re: Rear strut rods and shocks. (27/35)
 1/25/23 7:03pm
manchestersharkLifetime Member
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Well, After doing a few, my own, and others, let's just say they are NOT a take and replace project. 



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Re: Rear strut rods and shocks. (28/35)
 1/25/23 9:00pm
Elvis57
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Thanks for the help. Just getting ducks in row so when I start this project In a month or when weather gets a bit warmer here.

Re: Rear strut rods and shocks. (29/35)
 1/26/23 12:53am
Sasza79
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I will be doing mine soon on my '79 C3.   I already have my trailing arms removed.  I will update and let you know how it works out.  I will be removing the original OEM rubber bushings, and  I will install the replacement red poly-bushings made by Energy Suspension.  



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Re: Rear strut rods and shocks. (30/35)
 2/1/23 2:23pm
Elvis57
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 I haven't pulled the trailer arms out yet. But found a video on you tube for taking out bushings , which looks simple enough. It doesn't have a title except for 002 under its video picture. its by Greg  Ballenger.  Came across it looking how to remove trailer arm bushings 69 corvette. If i can figure how to send the link i will. 

Re: Rear strut rods and shocks. (31/35)
 2/1/23 2:35pm
Elvis57
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Try Greg Ballenger002.  the video should come up on You Tube

Re: Rear strut rods and shocks. (32/35)
 2/1/23 2:41pm
Elvis57
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has anyone used Por -15 paint. Thinking of using this after sanding down rear trailer arm and frame where i can reach. Thanks

Re: Rear strut rods and shocks. (33/35)
 2/1/23 3:37pm
Sasza79
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That is funny you ask...I am planning to use Gloss Black POR-15 on mine.   You can see a good review comparing it to other coatings, the presenter is 'ProjectFarm' on YouTube.   He thoroughly tests all kinds of tools and products!



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Re: Rear strut rods and shocks. (34/35)
 2/1/23 5:21pm
F4Gary
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Sasza79 said:

I will be doing mine soon on my '79 C3.   I already have my trailing arms removed.  I will update and let you know how it works out.  I will be removing the original OEM rubber bushings, and  I will install the replacement red poly-bushings made by Energy Suspension.  


I think poly would be great for the trailing arms, but don't use them on the strut rods.  They won't let the strut rod twist slightly as the trailing arm goes up and down.



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Re: Rear strut rods and shocks. (35/35)
 2/1/23 6:54pm
Elvis57
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I'm going to stick with rubber bushings for my trailing arms and just buy the tool for installation of them. Then sand them and use the Por-15 to paint them. 

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