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Rear suspension rotted out


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Hi

This might be it(funeral services) for the car.... 285k

It is a 91 subaru Loyale wagon

was hoping I would get to 300k

I have the spare parts, so it would just be labor...

Here are the details.

 

The rear passenger wheel leans in at the top.....

I had to drive at 40 miles perhour... for 200 miles.

to get home.......

I brought it into the garage...... to check out

the problem......

If you want to call it the lower rear cross member...

maybe that describes it well enough.....

basically this is the part which runs from wheel

to wheel and the lower control arms connect to.

(when I put jack stands under the car to support

the car this is where I hold the car up...

It is tubular in shape and hollow....

Well, It snapped... seems to have rotted

out from the inside out....

 

So the question... is... Has anyone ever

replace one of these.... basically, the whole

rear suspension has to be pulled out.

(or a good chunk of it)

Like I said, I have an extra one.... just

wonder if I should do it......

I am a glutton for punishment..... This

can be seen by trying to get 300k out of the car

Thanks, Mickytrus

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My first suggestion is to thoroughly look over the remaining 99% of the undercarriage, front to back. I would hate to see you go to fix this overlooking other rot too. IF you find other serious rot, then you will have to fix it as well. If you are lucky, this will be the only rot, but i highly suggest digging around other parts on the front too. IF you find more than this, than it will be a judgment call. I have seen people fix rear rust, only to have the front frame collapse and then its a goner.

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+1 if you go through all the trouble of fixing/ replacing the rear suspension, just to have the rest of the car be just as bad, you will have a solid rear suspension, with nothing holding it in the car.

 

If you have the other suspension still together, it would probably be just as easy to swap the whole thing out. If it's 4wd make sure it has the correct rear diff or put your current one into it if you decide the car is worth it.

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Yeah sure there is rot on it....

front frame is still ok....

Two years ago redid the wheel wheels in

the back... they were rotted out.

I have painted this car twice now...

not planning on a third.....

like if it is not a big deal I will do the job

really looking for some info on anyone

who has pulled a rear suspension out..

or even worked on one......

I did the rear drivers side wheel bearing

less than a year ago.... not a very fun job

needs impact tools....

So Has anyone spun out those rear crossmember

bolts? What was it like.....

To what degree of a nightmare is it....

If anyone can explain the steps to pull this thing out..

that would be cool. Otherwise, I will stare at it for

a while...... to figure it out...... Just hoping you's

could save me the trouble

Thanks, Mickytrus

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I've done a fair share or rear suspension swapouts on the EA82s and if you have the kind of rot issues in the subframe, the mounting points in the body are either going to pull out when you try and unbolt everything, or sheer a bolt off, leaving you between a rock and a hard place. If you're not using air tools, my advice would be to let her go to Subaru heaven

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I've heard of that piece breaking before.

 

 

I've also replaced it. Not for the same reason, for a 4WD conversion, but similar project.

 

 

I'm assuming this is a FWD car? When you mention jacking from the crossmember, I assume there isn't a rear diff there.

 

If that's the case, this won't be too bad of a project. One bolt on either side to disconnect the shock from the trailing arm. Disconnect the brake line. A bolt on the back side of the crossmember on the passenger side that clamps the fuel line down (don't forget this one!). And then 4 bolts per-side actually hold that crossmember to the body.

 

Now, separating the trailing arms from the crossmember can be challenging. The bolts that the trailing arms pivot on tend to be very tight, very difficult to access on the car. The outer bolt has a captive nut, so it's a bit easier on the car. The inner one has a loose nut on the back side, so you'll have to use 2 wrenches, in which case, off the car works pretty well.

 

Rust on these bolts can be a problem. I've disassembled a few of them, and had them fight me, even had 2 break (see the first 4 pictures below). If the bolt is seized into the bushing, you'll have a project on your hands. If the outer bolt gives you trouble, there are 3 bolts between that outer piece of the arm and the rest of the trailing arm, but beware, this is where the alignment is adjusted.

 

 

You say you have parts to replace it. If you can leave the crossmember and trailing arms as an assembly, I wouldn't hesitate to swap things over. If you need to swap your trailing arms over, I would give it some thought, and give the car a major inspection before doing the work.

 

 

If it's 4WD. You'll have to drop the rear diff too. At which point, you'll have some extra work to do. The axles are probably the only thing that'll give you trouble there. 4 bolts at the driveshaft, 1 bolt for the front hanger, and 2 to the rear hanger. Then pop a spring pin, and separate the axle from one end or the other (I'd pull them out with the diff).

 

 

 

Here's some pictures of EA82 rear suspension assemblies that Ive taken over the years. These are all 4WD, and a few are turbo (sway bar mounts).

 

DSCF0759Medium.jpg

 

DSCF0760Medium.jpg

 

DSCF0762Medium.jpg

 

DSCF0764Medium.jpg

 

PICT1015.jpg

 

PICT3207.jpg

 

PICT3224.jpg

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Numbchux,

Thanks for the pics

It is 4wheel drive....

Yeah the piece that is rotted out is

the one the trailing arms bolt to

Your third pic down clearly show

the location of my dilema. It is at

the outer swivel point....

I'll go and get some pics

to post post some pics for laughs:(:(:(

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if the rust is bad, like we have around WV/MD the bolts get rust welded into bushings, shear off, won't turn at all, or have to be burned out. it's a nightmare.

 

but...since, like john said it's not like a lot of the subframe bolts are hard to get too, he's brings up a great point - just go give it an hour and see how it goes for you since you seem well equipped and talentedwith this stuff.

 

back the rear end into a swimming pool filled with YIELD and maybe they'll come out. :lol:

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  • 2 weeks later...

here are some pics of the break.

I had mentioned I would post them....

good to see what/how they can break.

As for the car... Yeah, that is a good

optimistic approach. work on it for an

hour and see what happens.......

I ended up getting another loyale...

Out of RI.... 3 hours away..

this means I have four of them in my

yard now....... I'll post a pic of the "ho's".

It would be cool to get another 15k on the

car.(her name is Trixie).. she would have 300K... that was the

ultimate goal...

.post-3422-136027647451_thumb.jpg

 

I seem to be having trouble with the Image attachments.....

 

more pics

 

 

post-3422-136027647459_thumb.jpg

 

post-3422-136027647465_thumb.jpg

 

post-3422-136027647472_thumb.jpg

Edited by mickytrus
Where are the pics?
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It's actually less work to pull the whole thing as a unit than as individual pieces. consider this if you find a donor car, and just swap over the whole thing.

 

once you have it out, you can inspect the underbody of the car

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