Rear Shock Mount Rusted Out

Buckaroo

Buckaroo

Member
The steel where the left rear shock mounts is totally rusted out and the top of the shock is flopping around. I was investigating an ABS light and the wheel speed sensor wire on that wheel is severed. Had noted some rear end noise so this all makes sense.

Have had my T4R on rust life support for some time....welded the frame twice and the left rear axle strut bracket needs attention (those of you with rust issues know exactly where I am talking about) - had that on the list of things to do. I could drop the fuel tank, weld the bracket (can do it myself) and try to do something with the shock mount on that side but would need to fabricate something and go way back to get to "good" metal. The other side is probably just as bad. Is there anybody out there selling a pre-fabricated mount that I could weld in?

It's like your dog that is getting old and, at some point, needs to be put down but it breaks your heart. Kind of depressed.....

Buckaroo
 
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Pretty sure Toyota sells that piece of steel that you can weld in. [MENTION=99565]kolelt[/MENTION] did it I think.
 
Unner said:
Pretty sure Toyota sells that piece of steel that you can weld in. [MENTION=99565]kolelt[/MENTION] did it I think.
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Yeah, he did. I found him the part numbers for the weld-in pieces. Let me know if you don't hear from him and I'll look it up again.
 
I love the dog analogy, I've used it before. The big difference is that you can keep fixing the 4runner. My 3RZ is & has been a family member for 19 years. When I did my e-locker axle housing swap I tackled those mounts, cross members & frame rails. Get those mounts from Camelback & weld them in.
Mine only had surface rust, I wire wheeled, encapsulated & top coated.

Edit: I also drilled a second drain hole in the top of the shock mount. The one gets clogged with mud & dirt easily.
 

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Frame swap or fix it. At this point we need to accept the nature of the beast. Unless it was oil coated its whole life, it will rust from the inside out.
 
TheDurk said:
Yeah, he did. I found him the part numbers for the weld-in pieces. Let me know if you don't hear from him and I'll look it up again.
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Have not heard yet from [MENTION=99565]kolelt[/MENTION]....if you have time, could you provide P/N's for both right and left side?

thx,

Buckaroo
 
Thanks for all the info....as always, great input. This will be a mid-summer project. Thanks for the install pics [MENTION=99565]kolelt[/MENTION]....they make all the difference.

Buckaroo
 
This is why I weld the frame plates on the inside of the frames with new bottoms. That way we have steel to weld the new brackets and parts too. :]

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I was able to get a lot of good ideas from this post as well as others on the topic that allowed me to come up with solution to mine that were rusted out but hadn't fully punched through.

I ended up taking some 1/8 x 3" and 3/16 x 3 steel plate and making my new mounts that go on the outside of the frame similar to what someone else did in another post. I figured since that is where they moved them on the 4th gen series, it should work out ok.

After measuring the full movement of the rear axle, I determined that I could use the same shocks that were intended to go in the original mounts. This was a plus since I had already purchased them before finding the mounts rusted out.
 

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Jim Bezdan said:
I was able to get a lot of good ideas from this post as well as others on the topic that allowed me to come up with solution to mine that were rusted out but hadn't fully punched through.

I ended up taking some 1/8 x 3" and 3/16 x 3 steel plate and making my new mounts that go on the outside of the frame similar to what someone else did in another post. I figured since that is where they moved them on the 4th gen series, it should work out ok.

After measuring the full movement of the rear axle, I determined that I could use the same shocks that were intended to go in the original mounts. This was a plus since I had already purchased them before finding the mounts rusted out.
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Always great to have options. How did this effect the suspension travel of the shock? I have seen several folks offloading the shocks to the front and I am just curious how this would change things if any. :]

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Look what I found on top of my shock mounts. What a mud trap. I had just come from the car wash hence the wet. Still some Utah red in there.

Has anyone enlarged those tiny little drain holes? The tiniest pebble blocks them. A 3/8 hole might keep things cleaner up there. Brillo??? You’ve had a good look at things around there.
 

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Kanoe said:
Look what I found on top of my shock mounts. What a mud trap. I had just come from the car wash hence the wet. Still some Utah red in there.



Has anyone enlarged those tiny little drain holes? The tiniest pebble blocks them. A 3/8 hole might keep things cleaner up there. Brillo??? You’ve had a good look at things around there.
Click to expand...
You can enlarge the holes. The plates are fairly think if not rotted away. I would not get carried away but the hole is tiny. I was thinking of drilling mine to 1/4 or 3/8 at the most. 1/2 is just too big.. :)

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